5 Pfennig - Warburg

Warburg's 1917 iron notgeld was issued under the emergency currency provisions that allowed German municipalities to mint their own small-denomination coinage when the Reich's metal supplies collapsed under war demand. By 1917, nickel and copper had been almost entirely redirected to shell casings and military hardware, leaving a genuine gap in everyday commerce that the central government couldn't fill fast enough. The two Funck varieties — 574.1A and 574.1B — differ in minor die details, a common consequence of multiple local contractors producing the same piece under wartime supply constraints.