Hello! I'm THLT, a new coin collector at Numista. I have a 10 yen coin minted in 2012. It has recently developed a rainbow toner, if you look carefully enough. I also have another 10 yen coin from 1968, but it is uncirculated since it had been in my mother's wallet for 7 years. I am willing to swap them for any other coins, so if you want them, give me a reply!
