1 Penning Visby, no symbols

Visby's municipal coinage operated largely independently of Swedish royal authority throughout the medieval period, a privilege the city jealously guarded as a dominant Hanseatic entrepôt controlling Baltic trade routes. The penning denomination at this weight was the base unit of local reckoning, and the absence of distinguishing symbols on this type — as opposed to the marked varieties cataloged by Hauberg — likely reflects a specific phase of the mint's output rather than a degraded or anonymous issue.