20 Kronen

The Austro-Hungarian Bank's 1913 series was issued under conditions of increasing fiscal strain as the empire expanded military expenditure ahead of the First World War. This particular denomination was printed in substantial quantities and remained in official circulation well past the empire's dissolution in 1918 — the successor states of Austria, Czechoslovakia, Hungary, and others all overprinted or stamped existing Austro-Hungarian notes as a provisional measure while establishing their own currencies, and P#13 examples bearing such stamps are common enough to constitute a subspecialty of their own.

Unstamped survivors from purely Austrian circulation before the war are the more interesting find.