Re: Another Iver Johnson/US revolver question
.32 S&W, SN 44127, no pre-fix, medium frame -1915, 10,000 made that year
.38 S&W SN 6833, no pre-fix, large frame - 1911, 10,000 made that year.
Iver Johnson went to a stronger smokeless frame in 1909 so I believe both revolvers are safe to shoot. Where they made from new parts or leftover parts, sorry don't have the foggiest. Sorry about that.