75 Pfennig

Altona was a Danish city until 1864, a Prussian one thereafter, and wouldn't be absorbed into Hamburg until 1937 — so when its Magistrat issued this notgeld in 1921, it was still an independent municipality navigating the same postwar coin shortage that forced hundreds of German towns to print their own small-denomination emergency money. The 75-Pfennig value is slightly unusual; most series clustered around 50 Pf and 1 Mark, and the odd denomination suggests this was part of a deliberately differentiated set rather than a simple stopgap.

H.W. Köbner & Co. GmbH printed locally within the region, and the square format — rare for notgeld, which typically ran horizontal — points to a conscious aesthetic decision by the issuing committee.