I saw this unusual gem (?) pan labeled Lodge and am curious about approx. dates. I looked under Lodge gem pans and also unusual items and didn't find anything similar. Probably it's too recent, but I thought I'd ask...
https://flic.kr/p/Rpj5nT
https://flic.kr/p/RmEpr3
https://flic.kr/p/Rpj5nT
https://flic.kr/p/RmEpr3