76-mm Super Rapid Gun System mounted on Italian OF-40 main battle tank chassis line drawing
U.S. Army Armor Center
<a rel="nofollow" class="external text" href="https://babel.hathitrust.org/cgi/imgsrv/download/pdf?id=uiug.30112105118084;orient=0;size=100;seq=45;attachment=0">The Navy’s Antitank System</a>, <i>Armor</i>, March-April 1989, Vol. 98, No. 2, Page 43