Not sure whether to ask this here or /ck/. Anyone here any good at IDing cast iron? I'm trying to date this old Dutch Oven I got from my uncle for free.99. I can find the maker, but nothing about a date, or whatever the number 3 signifies (I assume size?). I can find other Dutch ovens with different numbers and people wand dumb money for them (like 200-300$).

I figured it'd be a bitch to clean all the rust off but it's actually coming off fairly easily with a power drill and a set of Walmart wire wheels.