Going through my fathers WWII stuff and found small tin box with some coins, most of which I have identified. But this has me stumped. Can anybody help me out?
Welcome to the forum imlocobilly. Your coin is from Thailand. If it is ~20mm, it is probably Y#80, an aluminum-bronze 25 satang (1/4 baht) dated BE2500 (1957) and minted without date change until 1987. Mintage 620,480,000, worth a few cents. If it's a different size, please give the dimensions to assist in a search through the 20+ pages of Thai coins in the Standard Catalog of World Coins 20th Century Ed.