20 Mark

Landsberg an der Warthe — now Gorzów Wielkopolski in western Poland — was a mid-sized Prussian city that issued notgeld like hundreds of German municipalities during the hyperinflationary spiral of the early 1920s. The Magistrat's recourse to Carl Flemming was practical: the Glogau-based printer had deep roots in commercial and cartographic printing and was geographically close, making it a natural choice for regional authorities needing fast, credible currency substitutes.

Carl Flemming maintained a Berlin operation alongside its Glogau press, and some sheets in this series were split between both facilities — worth checking if the imprint specifies one or both locations on your example.