1.000.000 Kronen

This note was never actually issued. The Oesterreichisch-ungarische Bank commissioned and printed the 1,000,000 Kronen denomination in 1918, but the collapse of the Austro-Hungarian Empire in November of that year rendered it obsolete before distribution. The successor states — Austria, Czechoslovakia, Hungary, and others — each moved quickly to stamp or overprint existing circulating notes as a stopgap monetary measure, and this denomination simply had no place in that scramble.

Surviving examples are remainders. The paper is typically found in far better condition than anything that actually passed through wartime hands, which makes condition alone a poor guide to rarity here.