Neat German Coal Dust Notgeld 500 Mark

The serial number thing wouldn't necessarily surprise me. These don't seem to be very well-studied, perhaps because of their scarcity, and with the one I discovered recently I'm 99.99% sure there are uncataloged major varieties to this.

Here -- look at this one. Picture dug out of worthpoint, which saved it out of ebay 4 years ago. Look at the serial number -- it's a) very low b) not hand-carved. These things probably went through a few adjustments over their mintage.

@nautilator,

Interesting, yeah at this point I have come across quite a few coal Notgeld coins that are serial numbered outside of the supposed mintages.