10 000 000 Mark Oberamt Leutkirch, overprint on 100 000 Mark

Leutkirch's Oberamt issued this note during the hyperinflationary spiral of late 1923, when municipal and district authorities across Württemberg were forced to improvise denominations faster than new notes could be printed. The solution here was blunt: an overprint of 10,000,000 Mark stamped onto existing 100,000 Mark stock, a hundredfold revaluation of a note that had itself only recently been considered adequate for everyday transactions.

The watermarked paper dates from an earlier, more stable print run — the security feature now almost absurdly mismatched to the note's economic irrelevance within weeks of issue.