Both revolvers were manufactured at the Colt London Armory in 1855 and are only nine digits apart. This is an interesting set given the cylinders were swapped early in their life, possibly at the London proof house and if not likely by the original owner. The cylinders are marked "23724" revolver 23715 and and "23715" on revolver 23724. The first clearly remained protected in the case while the second saw everyday type use. Obviously these revolvers have been together all this time. Matching serial numbers are marked on the loading levers, barrels, frames, trigger guards, and butts. The revolvers are accompanied by a hardwood case with an A. McComas Baltimore retailer label, dark blue velvet lining, a brown lacquer finished powder flask marked "COLT NAVY FLASK" and "JAMES DIXON/ & SONS/ SHEFFIELD", and a "COLT'S/PATENT" marked brass bullet mold with rare casehardened sprue cutter.

Excellent with the vast majority of the original finish and mostly only light handling and storage wear. The grips are also excellent with only minor pressure marks and one large ding on the butt. Mechanically excellent. The case is also excellent with minor wear. The flask is very fine with slight handling marks. The cleaned and polished mold is fine.

Very good. This is the revolver in the set that saw authentic use and has traces of original finish and otherwise an even satin gray patina with spotting and minor pin prick pitting. The cylinder scene is faint but still visible. The grips are good with patches of varnish loss and scattered pressure marks. Mechanically excellent.