20 Coroane Transilvania (Siebenbürgen) and Banat

After Romanian forces occupied Transylvania and the Banat following the collapse of Austria-Hungary, the new administration faced an immediate practical problem: the circulating Austro-Hungarian crown notes had to be brought under Romanian control without a fully established replacement currency. The solution was crude and fast — existing Austro-Hungarian banknotes were overstamped with a Romanian authority stamp, effectively conscripting enemy paper into local use. These overstamped crowns circulated alongside Romanian lei in a monetary zone that was, for several years, genuinely chaotic.

The P#R15 designation signals its provisional status — it falls outside the main Pick sequence, classified separately as a regional emergency issue rather than a nationally issued Romanian banknote.