My roommate's friend, The Data Viking, dropped by our house the other day with a truly princely gift: His granddad had run a gun store from 1939 on up, and over time had filled four cigar boxes with oddities and rarities Now I'm going to have fun going through them and cataloging the contents!
Next to it is a .33 Winchester, a cartridge that came out in 1902. Ballistically similar to the .35 Remington, it was replaced in the lineup by the .348 Winchester. Production was discontinued in 1940 and never resumed after the war.
The third cartridge is a .219 Zipper, a high-speed smallbore round for lever action rifles that came out in 1937. Given the difficulty of fitting optics to lever action Winchesters, it never really caught on and was finally put out to pasture in the early '60s.
Bonus: A full box of UMC .32 Smith & Wesson!