Rob,
It is possible your co-worker may have a copy of the .45 Luger pistol made by Moke Krause out of San Mateo, CA for the past 10-years or so.
He runs an aero-space level machine shop with a manufacturer's license to make hand guns from scratch. He runs a retail gun shop as well.
His .45 Luger pistols were a direct copy off the Abermann gun.
Krause' guns sold/sell new in the over $ 18K price range...made on special order.
There is one for sale on Gun Broker...you can see the photos at this link :
http://www.gunbroker.com/Auction/Vie...?Item=81033840