1 Pfennig 'Vierzipfeliger Pfennig'

The "Vierzipfeliger Pfennig" — the four-cornered pfennig — takes its name from the irregular, deliberately clipped flan shape produced by cutting square blanks from a rolled sheet and striking them off-center, leaving four protruding points. This was a regional bracteate tradition in the upper Rhine valley, where thin silver hohlpfennige and their relatives circulated in dense, fragmented political geography. The Landgraviate of Breisgau sat between the Habsburgs and the Bishop of Basel, with mint rights a constant source of jurisdictional friction during precisely this decade.