Netherlands
Wilhemina I Proof 2-1/2 Gulden 1937 PR61 PCGS, KM165. Obvc. Bust of Wilhelmina left. Rev. Crowned arms dividing value, with date below. Sharply struck, with light golden toning, fully mirrored fields, and minor marks. Only the second example of this Extremely rare Proof issue we have seen, with the other appearing in Christie's Amsterdam sale of the Joop Berkman Collection on May 10, 1988. This is the only Proof example certified by either PCGS, or NGC.
Estimate: 1000-1200 USD