I think I have a 1930s-1940s monopoly, but idk how rare or valuable it is.

From what l've researched, this is a late 1930s to early 1940s monopoly. I think it's rare, but not sure how rare and valuable it is. (It's missing the property cards, l've already bought replacements off eBay from the same set, and l've checked the board and it does not have the misprint "Marven" instead of "Marvin")