Welcome to the forum. Because I'm not sure how many different coins you have or which obverse goes with which reverse, I'll identify the coins in the following order: 1 2 3 4 5 1. Japan 10 yen dated 1971 (Showa 46) 2. one yuan ("one dollar") 3. Taiwan (Republic of China) dated 1960 (Republic 49 year) 4. Japan 10 yen 5. Japan 10 yen dated 1963 (Showa 38) Gary