I think this is from china but I can't read Chinese or whatever language is written on it and I even used google to find one like this but didn't find anything. I found it in a bag that belongs to my Mom and she got it from a guy who went to foreign countrys.
Country - Singular Countries - Plural Next time any questions like this coin do it at the World Coins forum not the What's it worth.
The date for your coin is year 50 in the reign of the Shouwa Emperor (Emperor Hirohito). So the date would be 1975.
To read: 日 本 国 = Nihon koku ~meaning literally Japan, country. 昭和= Shouwa. 五十年 gojuu-nen= 50th Year. 五円 go-en= 5 yen
These later years were minted in very large numbers, so are not rare or valuable, but the 5 yen is considered a lucky coin.
The design on the reverse represents their cornerstone industries. The rice stalks represent agriculture, those horizontal lines below are a depiction of water, which represents fisheries. Less noticeable is the "gear" around the hole. That represents manufacturing.
