Cowabunga, 1911 fans!! The rarest, most valuable 1911A1 known to exist is up for sale at the Rock Island Auction Company. It is A Singer, # S800221, and it has a complete history to accompany it. It was issued to a Lt. Charles H. Clark, U.S.N. Obviously he never used it. It is 99% and has three extra magazines. It has the high polish finish typical of the 500 Singers that were manufactured before the Government decided that the pistols were too well built and too pretty. The talents of the Singer MFG. CO. were put to better use. I would post a pic out of the catalog, but that isn't legal, so if you want to see the most valuable 1911A1 in existence, go to the R.I.A. website and have a look. Lot # 2446 If you're interested in buying it ....better sell the house, the car, and your left leg...It is estimated to go for $160,000 - $ 240,000..