Can Anyone ID This Asian Coin?

Does Anybody have any idea where this coins is from and what is says on it. I assume Asia I wonder if Korea pre Korean War but I am guessing. I came across it with some other world coins and have no idea about this one. It does have some beautiful flowers, I assume it is from 1942 since it has a 42 on it. If anyone knows Please help me out. Thanks! Click the pictures to make them bigger