I have a similar vintage ladies bike just outside the back door with that crank. Didn't want to part it, I'll try to reuse the original. We'll see.@RustyHornet thats going to fit nice on the chart. The other stamps could be bike security stampings from a registry. ??
@Doodsie those were the same markings as on my OG 41 crank. 502 is the Ladies/New World 6.5” crank part number. Sorry to hear about the threads. The ladies 502 dog leg cranks are somewhat easier to find at least.