As a matter of further interest, I have a couple of .41 Short r.f. cartridges, no box, which I assume are Western Cartridge Co. They are typical, copper cased with copper plated "Luballoy" bullets and the "H" headstamp.
These were found in a cigar box in an old hardware store on the (then) edge of town.
Hardware stores used to sell a cylinder full, or a couple of rounds, from a box. After many years the remaining cartridges from that box were dumped into an old cigar box, or some such receptacle.
Bob Wright