Thank You Sniffer!
Japan has a lot of modern low mintage coins. For example the 1987 50 yen coin they only minted 775,000 and it lists for about $150.00.
I didn't think i recognized that one. It is Korean. I don't know a thing about Korean coins but I think they are called Won??
You you have a 50 won there as opposed to a 50 yen.
Nice international haul!