50 Pfennig

Borstel was a small rural municipality in the Pinneberg district of Schleswig-Holstein, and its decision to issue notgeld in 1921 places this firmly in the second wave of German emergency money — not the wartime scarcity issues of 1914–18, but the inflationary municipal issues that proliferated as the Reichsmark began its collapse. These smaller Schleswig-Holstein communities often commissioned local printers, and the resulting issues tend to show more variation in ink quality and registration than the better-funded city series.

The DeNG reference suffix ".1-3/6" indicates this is one of at least three known variants within the same denomination series, distinguished by serial number groupings or minor typographic differences catalogued by Dießner and Grabowski.