1 Mark

This note is a product of the Upper Silesia plebiscite period — the March 1921 vote on whether the region would join Germany or Poland left local administrations in a state of prolonged uncertainty, and Notgeld issues like this one filled the gap left by an unreliable national currency supply. Klodnitz, a small industrial commune near Gleiwitz, was among dozens of Upper Silesian municipalities that printed their own emergency money during this window.

Grass, Barth & Comp. (operating under the W. Friedrich imprint) was a well-established Breslau commercial printer, not a specialist security house — the guilloche underprint was their concession to anti-counterfeiting, though for denominations this small, forgery was rarely a practical concern.