100 Korún Provisional Note

When Czechoslovakia dissolved on 1 January 1993, neither successor state had new currency ready. Slovakia's solution was blunt: overstamp existing Czechoslovak 100 Korún notes with an adhesive stamp bearing the Národná banka Slovenska name and Slovak coat of arms, creating a provisional issue that remained legal tender only briefly before purpose-designed Slovak notes replaced it. The stamping was done hastily, and misaligned or poorly adhered stamps are common enough that they aren't considered errors — they're simply characteristic of the operation.

The underlying note was printed in Prague, and the same Prague state security printer continued producing Slovak currency after the split.