10 Pfennig - Köslin

Köslin's 1917 zinc notgeld emerged from the same municipal scramble that hit hundreds of German cities that year, when wartime hoarding stripped small-denomination coinage from circulation almost entirely. The city — now Koszalin in northwestern Poland — issued under magistrate authority rather than waiting for central relief that was slow to arrive. Zinc was the compromise material: iron corroded too quickly in pocket wear, and anything with copper content was needed elsewhere for shell casings.