Czechoslovakia 1919 500/500 Korun Postage Due Inverted Overprint

Czechoslovakia · 1919 · 500 Korun

This is a postage due stamp featuring a 1919 overprint on a 1917 Austrian newspaper stamp. The design consists of a large numeral '500' overprinted on the original Austrian design. The key feature of this rare variety is the inverted 'DOPLATIT' (Postage Due) overprint, making it a significant error stamp.

Issued in the early days of the First Czechoslovak Republic, this stamp represents the transition from the Austro-Hungarian Empire. Overprinting existing Austrian stamps was a common and practical way for the new nation to establish its own postal system quickly.