He also had a baggie of ~20 cartridges his father had kept for it, labeled "for (grandfather's) gun". But behold, this is not 32 Win Spl: I came up empty from my manuals and SAAMI, so off to the Interwebs. . . I learned that I a was looking at a handful of Rem-UMC headstamp .32 Winchester Self Loading cartridges, developed for Winchester's Model of 1905 semi-auto rifle. I had never seen or heard of either, but now I have five cartridges for my cartridge collection. He also had a nearly unfired (and as ugly a new!) Iver Johnson .22 8-shot revolver, and a really beautiful S&W 39-2. Someone had good taste!