Yes your bottom coin is a 1987 10 won Korean coin. It has a value of about one cent, unless it is a rotated die error. Very rare 1987 10 won coins have a 180 degree rotated die, so the coin flips on a medallic alignment. If you grab it from the bottom and flip it on the Y axis (flip it from left to right/right to left) and the reverse is straight up and down, you have an error. Otherwise it is worthless. They normally have a coin alignment, not medallic.























