Japan Silver Yen 1874

I know this has been dormant for a while but I wanted to point out something. Whilst I agree that the coin is indeed a fake its really the edge that demonstrates it along with the weight rather than the beading.
The beading in fact is not particularly suspicious as for the earlier 1 yen coins specifically 74 and 75, the beading was far less a perfect ring than later dates.

There is one other thing in that the reverse seems to be the new shallow veins reverse seen in coins 78 and later rather than the deep veins used for 74 and 75 dates. As far as is known only the 78 had both deep and shallow veins and hence this is certainly a fake from the get go.