{"version":"1.0","provider_name":"The Mariners&#039; Museum and Park","provider_url":"https:\/\/www.marinersmuseum.org","author_name":"Web Master","author_url":"","title":"Dahlgren Gun Tools: an In-Depth Look at Treatment, Part I","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"Yu32hTVqAu\"><a href=\"https:\/\/www.marinersmuseum.org\/2021\/08\/dahlgren-gun-tools-an-in-depth-look-at-treatment-part-i\/\">Dahlgren Gun Tools: an In-Depth Look at Treatment, Part I<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.marinersmuseum.org\/2021\/08\/dahlgren-gun-tools-an-in-depth-look-at-treatment-part-i\/embed\/#?secret=Yu32hTVqAu\" width=\"600\" height=\"338\" title=\"&#8220;Dahlgren Gun Tools: an In-Depth Look at Treatment, Part I&#8221; &#8212; The Mariners&#039; Museum and Park\" data-secret=\"Yu32hTVqAu\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.marinersmuseum.org\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","thumbnail_url":"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2021\/08\/USSPassaic_TurretInterior.jpg","thumbnail_width":740,"thumbnail_height":615,"description":"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;]"}