These bookmarklets implement <URL:https://community.ebay.com/t5/Shipping-Returns/Print-listing-button-gone-Why/m-p/24328843#M102542>.

javascript:window.location.href%20=%20"http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItemVersion&item="%20+%20document.URL.match(new%20RegExp(".*?//.*?/(itm/)?.*?/([0-9]+)"))[2];

javascript:window.location.href%20=%20"http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemVersion&item="%20+%20document.URL.match(new%20RegExp(".*?//.*?/itm/(.*?/)?([0-9]+)"))[2];