200 Gulden

Pick 25 spans an unusually long issue window — nearly six decades — during which De Nederlandsche Bank continued hand-dating individual notes at the Amsterdam cashier's office rather than printing fixed dates into the plate. The April 1945 date here is among the last possible for this series: the Netherlands was liberated in May 1945, and the postwar monetary purge that followed, the Geldzuivering of September 1945, immediately froze and then invalidated large-denomination notes in an effort to neutralize wartime hoarding and German-acquired currency.

A 200 Gulden note dated within weeks of liberation almost certainly never passed through normal trade.