1000 Gulden 'Grietje Seel'

The "Grietje Seel" nickname derives from the female figure engraved on the note — a common Dutch habit of personalizing high-denomination paper, though the name itself has murky folk etymology. At 1000 Gulden, this was serious money in interwar Netherlands; a factory worker's weekly wage ran to perhaps 12 to 15 Gulden in the mid-1930s.

When German forces occupied the Netherlands in May 1940, the DNB suspended convertibility and this series was eventually called in under the post-liberation currency purge of 1945, which required holders to register large-denomination notes — a measure aimed squarely at wartime black-market profits. Unregistered examples were voided.