Definitely an Ashtray, circa 1940s. Nice piece! Worth about $100 - $125 because of the paint flaking. If it was EX/MT or better, it would be worth double that amount. Very condition-sensitive piece, due to that "chippy" style paint.
If you want to see some very similar examples (but not quite the same), you can check out this video we did a while back...
https://www.youtube.com/watch?v=LvJiUh1FdPA
Hope this helps!