10 Pfennig

Bromberg — now Bydgoszcz in northern Poland — was a majority German-speaking administrative center within the Prussian Province of Posen, an area of contested German-Polish identity long before the First World War settled nothing and the 1919 Treaty of Versailles settled everything, transferring the city to the newly reconstituted Polish state. This Magistrat-issued Notgeld emerged from the acute small-change shortage that gripped German municipal economies from 1916 onward, as metal coinage disappeared into the war economy.

The dual-signature arrangement — Mitzlaff alongside Aronsohn — reflects the civic bureaucratic structure of a Prussian Magistrat, where financial instruments required countersignature by senior municipal officers.