its chinese, not japanese. the symbols on back are for the elements, fire, earth, water, so on. the front is for the emporor in power from the two dates. probably not too old, but still a really cool coin hope i win id love to have it.
Lista freinds i am truelysorry for the mix up on this coin my lista freind slimfired17 brought this to my attention,that this is a chinese coin but it is still a cool and collectibal coin this was a total mistake and im truly sorry,happy bidding any way,and we will try and research exstenive in the future..thanks