Posted 11/10/2015 03:11 am
most japanese coins from 1880's or so till now have the emperor's name in kanji and the year of the reign, and most are listed like year 14 or something like that. if you look at a few webpages or the standard catalog of foreign coins, you can use the images to ball park the date range and then use a japanese number guide to find the year. There is a list of the emperor's names as well. Before the coining of the yen, its much more tricky.
