<http://schema.org/description>
"Centrifugal engine, &amp;amp;#39;drwaing no 3&amp;amp;#39;, wheel elevation and sections 5 November 1849 Date: 1849"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mediastorehouse.com/centrifugal-engine-drawing-no-3/print/5081987.html>