I bought this holster maybe 40 years ago at a war surplus store in Colorado
Springs,no #`s and no letters on it,do you think it`s military or civilian?
A 2 or 3in.S&W or a Colt fits.
Dick
I'd say most likely civilian. Several makers made shoulder rigs very similar to that, probably beginning in the 1920s. Most usually fit a variety of similar sized guns.