Good friend showed me a box of 28 ga. from his youth, long ago as he is 85. Western Cartridge Co, no mention of Olin, Winchester, or non-corrosive priming. Full box, slip top, nearly mint condition. I have never heard of 2 7/8 inch 28s before. Was that a common thing back in the teens or 20s? Offered to buy them; he said no, but would tag them to go to me when he passes. I am very honored at that. I know a good bit about old cartridges, but this is a new one on me. Comments, anyone?