Below are possible answers for the crossword clue Old Japanese coin. RIN (3). Other crossword clues with similar answers to 'Old Japanese coin'. Below is the solution for Weight of a Japanese yen coin crossword clue. This clue was last seen on August 24 New York Times Crossword Answers in the. Cant find solution to the crossword clue "Old Japanese coin"? Stop worrying! We are here to give you the right solutions in the shortest time: Best Answer: RIN.