50 Kruna

Pick 8B is a provisional issue, not an original design. The Kingdom of Serbs, Croats and Slovenes — proclaimed in December 1918 — had no printing infrastructure of its own yet, so it overstamped existing Austro-Hungarian banknotes to assert monetary control over the newly unified territory. The overstamp converted enemy-currency stock into ostensibly legitimate tender almost overnight.

The "B" suffix distinguishes this from Pick 8A by the stamp placement or color variant — a detail that matters more to completists than the casual buyer, but separates meaningfully different print runs in auction records.

Forgeries of the overstamp itself were circulating within months of issue.