When I look at these for awhile, I feel somewhat like the folks must have felt who discovered the Dead Sea scrolls ...

... Let's go get the electron microscope, fellows, I'm sure there's a Peter I kopeck underneath the surface somewhere!
Actually, I think the second coin does show evidence of the rider ... or some such thing ... gxseries, at what point do you consider a coin to be so worn that it is no longer collectible?
Seriously, though, keep up the good work ... we can all learn from you!