1000 Korún Provisional 'Adhesive stamp' issue

When Czechoslovakia was reconstituted after World War II, the new Slovak administration faced an immediate currency problem: existing Protectorate-era Czech banknotes were still in circulation but politically unacceptable. The solution was pragmatic to the point of improvisation — valid notes were submitted by the public, overprinted with an adhesive stamp bearing the Slovenská Národná Banka authorization, and reissued. The 1000 Korún was the highest denomination put through this process, which made it both the most economically significant and the most vulnerable to abuse.

The stamping was done under rushed conditions in 1945, and adhesion quality varied enough that detached or poorly applied stamps are a known issue with surviving examples. A note with the stamp cleanly intact and firmly adhered is the exception, not the rule.