{"id":13253,"date":"2021-08-09T17:02:35","date_gmt":"2021-08-09T21:02:35","guid":{"rendered":"https:\/\/www.marinersmuseum.org\/?p=13253"},"modified":"2025-03-27T07:40:36","modified_gmt":"2025-03-27T11:40:36","slug":"dahlgren-gun-tools-an-in-depth-look-at-treatment-part-i","status":"publish","type":"post","link":"https:\/\/www.marinersmuseum.org\/2021\/08\/dahlgren-gun-tools-an-in-depth-look-at-treatment-part-i\/","title":{"rendered":"Dahlgren Gun Tools: an In-Depth Look at Treatment, Part I"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\"><strong>Cannon Tools<\/strong><\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\" id=\"attachment_16490\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" data-attachment-id=\"14347\" data-permalink=\"https:\/\/www.marinersmuseum.org\/img_2701-scaled\/\" data-orig-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/IMG_2701-scaled-1.jpg\" data-orig-size=\"2560,1707\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;18&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;Canon EOS 30D&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1330529096&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;10&quot;,&quot;iso&quot;:&quot;100&quot;,&quot;shutter_speed&quot;:&quot;5&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"IMG_2701-scaled\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/IMG_2701-scaled-1-300x200.jpg\" data-large-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/IMG_2701-scaled-1-1024x683.jpg\" src=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/IMG_2701-scaled-1.jpg\" alt=\"\" class=\"wp-image-14347\" srcset=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/IMG_2701-scaled-1.jpg 2560w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/IMG_2701-scaled-1-300x200.jpg 300w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/IMG_2701-scaled-1-1024x683.jpg 1024w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/IMG_2701-scaled-1-768x512.jpg 768w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/IMG_2701-scaled-1-1536x1024.jpg 1536w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/IMG_2701-scaled-1-2048x1366.jpg 2048w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/IMG_2701-scaled-1-805x537.jpg 805w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/IMG_2701-scaled-1-620x413.jpg 620w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/IMG_2701-scaled-1-386x257.jpg 386w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/IMG_2701-scaled-1-281x187.jpg 281w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/IMG_2701-scaled-1-180x120.jpg 180w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><figcaption>Image of USS Monitor\u2019s Port Dahlgren gun. Photo courtesy of The Mariners\u2019 Museum and Park<\/figcaption><\/figure>\n<\/div>\n\n\n<p>You\u2019re probably familiar already with USS <em>Monitor\u2019s<\/em> <a href=\"https:\/\/www.marinersmuseum.org\/2020\/04\/gun-boring-no-gun-fascinating\/\">Dahlgren<\/a> <a href=\"https:\/\/www.marinersmuseum.org\/2018\/04\/engine-gun-carriage-packing-seal-oh-my\/\">guns<\/a>. They are a key part of the history of <em>Monitor<\/em>, and we have completed some significant conservation steps to finishing treatment on the Dahlgrens recently. What you are likely less familiar with are the tools that were used to maintain the Dahlgren guns while they were used on USS <em>Monitor<\/em>. <\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\" id=\"attachment_16485\"><a href=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/1427900209818.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"580\" height=\"556\" data-attachment-id=\"13255\" data-permalink=\"https:\/\/www.marinersmuseum.org\/2021\/08\/dahlgren-gun-tools-an-in-depth-look-at-treatment-part-i\/1427900209818-jpg\/\" data-orig-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/1427900209818.jpg\" data-orig-size=\"580,556\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"1427900209818.jpg\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/1427900209818-300x288.jpg\" data-large-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/1427900209818.jpg\" class=\"wp-image-13255\" src=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/1427900209818.jpg\" alt=\"\" srcset=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/1427900209818.jpg 580w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/1427900209818-300x288.jpg 300w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/1427900209818-386x370.jpg 386w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/1427900209818-281x269.jpg 281w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/1427900209818-180x173.jpg 180w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/a><figcaption>Depiction of cannon cleaning tools with descriptions from the https:\/\/www.history.navy.mil\/ resource library<\/figcaption><\/figure>\n<\/div>\n\n\n<p>In the image above you\u2019ll see illustrations of several historic cannon cleaning and loading tools. 1) The sponge would be dipped in water, and run down the barrel of the cannon to extinguish sparks in the bore after firing. 2) The worm cleaned unburned fragments of cloth powder bags from the bore. 3) Ladles were originally used to load powder, but after cartridge bags came into use, they were used to extract loads from the muzzle. 4) The rammer sealed cartridge and ball in place in the barrel. 5) The scraper and searchers were used to clean the gun. 6) The handspike helped to move the gun carriage and to adjust the gun\u2019s elevation.  (From Albert Manucy, Artillery Through the Ages (Government Printing Office, 1949). All of these tools would be used to maintain the Dahlgren guns on <em>Monitor <\/em>and generally used each time the cannon was fired. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Monitor Gun Sponge<\/strong><\/h3>\n\n\n\n<p>We have several examples of these gun tools in the <em>Monitor<\/em> collection, specifically, worm, sponge, and rammer. I have been working on one of the gun tools, a combination sponge and worm tool. This tool has a wood body, with an iron handle, and the majority of the handle was removed during excavation. It also has a copper alloy worm attached to the end. When it was in use, the wooden body would have been wrapped in fabric, so that it would retain moisture when dunked in water before cleaning the cannon barrel. The gun tool is also coming to the end of treatment, so I thought I would share with you all the process it has been through. <\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\" id=\"attachment_16491\"><a href=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/USSPassaic_TurretInterior.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"740\" height=\"615\" data-attachment-id=\"13256\" data-permalink=\"https:\/\/www.marinersmuseum.org\/2021\/08\/dahlgren-gun-tools-an-in-depth-look-at-treatment-part-i\/usspassaic_turretinterior-jpg\/\" data-orig-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/USSPassaic_TurretInterior.jpg\" data-orig-size=\"740,615\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"USSPassaic_TurretInterior.jpg\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/USSPassaic_TurretInterior-300x249.jpg\" data-large-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/USSPassaic_TurretInterior.jpg\" class=\"wp-image-13256\" src=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/USSPassaic_TurretInterior.jpg\" alt=\"\" srcset=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/USSPassaic_TurretInterior.jpg 740w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/USSPassaic_TurretInterior-300x249.jpg 300w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/USSPassaic_TurretInterior-620x515.jpg 620w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/USSPassaic_TurretInterior-386x321.jpg 386w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/USSPassaic_TurretInterior-281x234.jpg 281w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/USSPassaic_TurretInterior-180x150.jpg 180w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><\/a><figcaption>Historic drawing of USS Passaic (a Monitor-class vessel). Gun tools (including sponge and ladle) can be seen hanging from the roof above the cannons. Image courtesy of The Mariners\u2019 Museum and Park<\/figcaption><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>Condition<\/strong><\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\" id=\"attachment_16492\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1696\" data-attachment-id=\"14342\" data-permalink=\"https:\/\/www.marinersmuseum.org\/guntoolblog2-scaled\/\" data-orig-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog2-scaled-1.jpg\" data-orig-size=\"2560,1696\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;18&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;Canon EOS 50D&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1493905619&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;17&quot;,&quot;iso&quot;:&quot;125&quot;,&quot;shutter_speed&quot;:&quot;0.2&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"guntoolblog2-scaled\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog2-scaled-1-300x199.jpg\" data-large-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog2-scaled-1-1024x678.jpg\" src=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog2-scaled-1.jpg\" alt=\"\" class=\"wp-image-14342\" srcset=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog2-scaled-1.jpg 2560w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog2-scaled-1-300x199.jpg 300w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog2-scaled-1-1024x678.jpg 1024w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog2-scaled-1-768x509.jpg 768w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog2-scaled-1-1536x1018.jpg 1536w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog2-scaled-1-2048x1357.jpg 2048w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog2-scaled-1-805x533.jpg 805w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog2-scaled-1-620x411.jpg 620w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog2-scaled-1-386x256.jpg 386w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog2-scaled-1-281x186.jpg 281w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog2-scaled-1-180x119.jpg 180w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><figcaption>Image of the gun tool before treatment. Photo courtesy of The Mariners\u2019 Museum and Park<\/figcaption><\/figure>\n<\/div>\n\n\n<p>When I first started conservation on the gun tool, it was covered in compressed mud and marine growth from when it was buried on the ocean floor. This meant it was impossible to see if any of the fabric that would have been wrapped around the wood remained. Even though we could tell it was a gun sponge with a worm attached, it was difficult to tell what kind of condition the wood and metal pieces were in. We x-rayed the gun sponge, which allowed me to see how degraded the wood was, and how far the metal components extend into the wood body. <\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\" id=\"attachment_16493\"><a href=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/Picture1.png\"><img loading=\"lazy\" decoding=\"async\" width=\"944\" height=\"1142\" data-attachment-id=\"13258\" data-permalink=\"https:\/\/www.marinersmuseum.org\/2021\/08\/dahlgren-gun-tools-an-in-depth-look-at-treatment-part-i\/picture1-png\/\" data-orig-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/Picture1.png\" data-orig-size=\"944,1142\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Picture1.png\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/Picture1-248x300.png\" data-large-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/Picture1-846x1024.png\" class=\"wp-image-13258\" src=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/Picture1.png\" alt=\"\" srcset=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/Picture1.png 944w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/Picture1-248x300.png 248w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/Picture1-846x1024.png 846w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/Picture1-768x929.png 768w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/Picture1-805x974.png 805w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/Picture1-620x750.png 620w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/Picture1-386x467.png 386w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/Picture1-281x340.png 281w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/Picture1-180x218.png 180w\" sizes=\"auto, (max-width: 944px) 100vw, 944px\" \/><\/a><figcaption>X-ray image of the gun tool. The arrows point to the pin in the copper alloy worm and a weak point in the iron handle. Both are reasons the metal components could not be separated from the wood. Photo courtesy of The Mariners\u2019 Museum and Park<\/figcaption><\/figure>\n<\/div>\n\n\n<p>The x-ray showed me that while some parts of the wood were very degraded, the majority of it was stable and in good shape. The x-ray also showed me that the worm is held in place inside the wood with a pin, as is the iron handle. So both metal components would be nearly impossible to separate from the wood body, and I needed to conserve the object whole. This makes for extra complications because the treatments for wood and metal are very different. In fact, some metal treatments can be damaging to wood and vice versa. So I knew I needed to look into some alternative options for the gun sponge. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Surface Cleaning and Examination<\/strong><\/h3>\n\n\n\n<p>However, the first step was a clear choice\u2013clean the mud and marine growth off the surface. For this process, I used a combination of pneumatic tools and an ultrasonic dental scaler. The dental scaler is the same tool the dentist uses to clean your teeth, and with adjustable water jets and sonic cleaning, it also makes a great tool for cleaning waterlogged organics. <\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\" id=\"attachment_16494\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1920\" data-attachment-id=\"14349\" data-permalink=\"https:\/\/www.marinersmuseum.org\/guntoolblog3-scaled\/\" data-orig-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog3-scaled-1.jpg\" data-orig-size=\"2560,1920\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;1.8&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;iPhone 7&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1499865840&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;3.99&quot;,&quot;iso&quot;:&quot;64&quot;,&quot;shutter_speed&quot;:&quot;0.066666666666667&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"guntoolblog3-scaled\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog3-scaled-1-300x225.jpg\" data-large-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog3-scaled-1-1024x768.jpg\" src=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog3-scaled-1.jpg\" alt=\"\" class=\"wp-image-14349\" srcset=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog3-scaled-1.jpg 2560w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog3-scaled-1-300x225.jpg 300w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog3-scaled-1-1024x768.jpg 1024w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog3-scaled-1-768x576.jpg 768w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog3-scaled-1-1536x1152.jpg 1536w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog3-scaled-1-2048x1536.jpg 2048w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog3-scaled-1-805x604.jpg 805w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog3-scaled-1-620x465.jpg 620w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog3-scaled-1-386x290.jpg 386w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog3-scaled-1-281x211.jpg 281w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/guntoolblog3-scaled-1-180x135.jpg 180w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><figcaption>The gun tool after several hours of surface cleaning. Details in the wood surface and the handle are able to be seen. Photo courtesy of The Mariners\u2019 Museum and Park<\/figcaption><\/figure>\n<\/div>\n\n\n<p>Cleaning the surface confirmed what I saw in the X-ray. The wooden body of the tool is heavily degraded on one side, but the other is fairly intact and stable. I found that the iron handle was attached to the wood body with a very degraded cast iron plate and four copper-alloy screws. But most exciting of all, I found that the iron handle was wrapped in textile! AND it was still in fairly stable condition. I knew I had to ensure the textile was well preserved in my treatment. <\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\" id=\"attachment_16496\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1920\" data-attachment-id=\"14350\" data-permalink=\"https:\/\/www.marinersmuseum.org\/mnms-2002-01-284a01_detail02-scaled\/\" data-orig-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/MNMS-2002-01-284A01_Detail02-scaled-1.jpg\" data-orig-size=\"2560,1920\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;3.9&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;FinePix XP200\\\/XP210&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1503918000&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;5&quot;,&quot;iso&quot;:&quot;160&quot;,&quot;shutter_speed&quot;:&quot;0.033333333333333&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"MNMS-2002-01-284A01_Detail02-scaled\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/MNMS-2002-01-284A01_Detail02-scaled-1-300x225.jpg\" data-large-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/MNMS-2002-01-284A01_Detail02-scaled-1-1024x768.jpg\" src=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/MNMS-2002-01-284A01_Detail02-scaled-1.jpg\" alt=\"\" class=\"wp-image-14350\" srcset=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/MNMS-2002-01-284A01_Detail02-scaled-1.jpg 2560w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/MNMS-2002-01-284A01_Detail02-scaled-1-300x225.jpg 300w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/MNMS-2002-01-284A01_Detail02-scaled-1-1024x768.jpg 1024w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/MNMS-2002-01-284A01_Detail02-scaled-1-768x576.jpg 768w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/MNMS-2002-01-284A01_Detail02-scaled-1-1536x1152.jpg 1536w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/MNMS-2002-01-284A01_Detail02-scaled-1-2048x1536.jpg 2048w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/MNMS-2002-01-284A01_Detail02-scaled-1-805x604.jpg 805w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/MNMS-2002-01-284A01_Detail02-scaled-1-620x465.jpg 620w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/MNMS-2002-01-284A01_Detail02-scaled-1-386x290.jpg 386w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/MNMS-2002-01-284A01_Detail02-scaled-1-281x211.jpg 281w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/MNMS-2002-01-284A01_Detail02-scaled-1-180x135.jpg 180w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><figcaption>Detail image of the cleaned iron handle, with textile wrapped around it. Photo courtesy of The Mariners\u2019 Museum and Park<\/figcaption><\/figure>\n<\/div>\n\n\n<p>I\u2019ll return to the gun tool treatment in Part II, were I talk about how I protected the textile during treatment, and how I adjusted treatment steps to preserve both the metal and organic components. See you next week!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cannon Tools You\u2019re probably familiar already with USS Monitor\u2019s Dahlgren guns. They are a key part of the history of Monitor, and we have completed some significant conservation steps to finishing treatment on the Dahlgrens recently. What you are likely less familiar with are the tools that were used to maintain the Dahlgren guns while [&hellip;]<\/p>\n","protected":false},"author":13,"featured_media":13256,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"byline":{"profiles":[{"type":"byline_id","atts":{"term_id":102,"post_id":4711}}]},"jetpack_post_was_ever_published":false,"ep_exclude_from_search":false,"mariners_open_graph_description":"","mariners_open_graph_image":0,"mariners_open_graph_title":"","mariners_featured_image_focal_point":{"x":0.5,"y":0.5},"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"prominence":[],"audience_motivation":[],"byline":[102],"class_list":["post-13253","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.9 (Yoast SEO v26.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Dahlgren Gun Tools: an In-Depth Look at Treatment, Part I - The Mariners&#039; Museum and Park<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.marinersmuseum.org\/2021\/08\/dahlgren-gun-tools-an-in-depth-look-at-treatment-part-i\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dahlgren Gun Tools: an In-Depth Look at Treatment, Part I\" \/>\n<meta property=\"og:description\" content=\"Cannon Tools You\u2019re probably familiar already with USS Monitor\u2019s Dahlgren guns. They are a key part of the history of Monitor, and we have completed some significant conservation steps to finishing treatment on the Dahlgrens recently. 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