Offered here is a rare factory prototype of an unknown Mark III series Colt revolver which was never put into production. The included factory letter lists this revolver as chambered in .357 Magnum with a 4 inch heavyweight barrel, polished stainless finish, checkered walnut wraparound grips, wide spur hammer and without markings when shipped on October 16, 2008. The letter further remarks that the revolver was an experimental prototype kept by the Colt factory and the original label was a yellow card (not included) marked "Delta" which is believed to have been what the model would have been named had it been released. Includes a two-piece Colt "woodgrain" box. Provenance: The Colt Factory Collection; Property of a Gentleman

Excellent overall with some handling marks, front cylinder flash marks, a cylinder drag line, and crisp grip checkering. Mechanically excellent. Box is very fine. These Colt prototypes don't come up for sale often, this is your chance to add one to your gun room and advance your collection!