25 Pfennig

Weißenfels was a mid-sized Saxony-Anhalt town with a significant shoe manufacturing industry, and like hundreds of German municipalities in 1921, it turned to Notgeld to plug the gap left by a chronic shortage of small-denomination Reichsmark coinage — a problem rooted in metal hoarding and wartime disruption that the Reichsbank was still nowhere close to solving. J. Adolf Schwarz in Lindenberg im Allgäu was one of several regional printers who built a tidy business supplying these civic emergency issues, often producing identical layouts for dozens of different towns with only the issuing authority changed.

The ".1b" suffix in the DeNG reference indicates a recognized variant within the type — likely a color or paper difference from the base 1403.1a.