50 Pfennig

Friedrichshafen's identity in 1920 was inseparable from the Zeppelin works, and the city's decision to issue Notgeld that year reflects how badly fractional coinage had dried up across postwar Germany — not local eccentricity, but a nationwide collapse in small-denomination coin supply that forced hundreds of municipalities to print their own emergency scrip. Carl Grüninger Nachfolger Otto Klett was a well-regarded Stuttgart commercial printer with a substantial Notgeld output during this period, handling issues for numerous Württemberg municipalities.

The single signature, "Mayer," almost certainly corresponds to a senior municipal treasury official, though the exact individual is unrecorded in standard references.