Netherlands
Groningen. Provincial Stuiver - 8 Plakken klippe 1622 VF25 NGC, KM-A16.1. Attractive toning on this very rare klippe issue, of which only two dates are known. The type was apparently unknown until one appeared in an NGSA sale in 2006, and quite possibly represents an essai during the gradual reorganization of the mint.
Estimate: 1500-2000 USD