I don't know, but I have an Uberti replica of the sidearm carried by officers and cavalrymen there, i.e., carried by Custer's 7th Cavalry.

Same exact markings and configuration (old style frame, sights, and ejector thumb piece), to include being marked 7th Cavalry, serial numbers in all the right places, inspection marks, etc.. Only marking that's different is that it doesn't have Sam Colts NY address on the top of the barrel. Instead, it has the address of Cimarron Firearms there.

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