Netherlands, Duchy of Guelders, Wilhelm I (1379-1402), Groschen undated, Arnhem mint, issue
So-called helmet groschen.
Obverse: ornate helmet inside polylobe of six arcs, pellet in each angle
✠ WILhELM : DVX : GELR : Z : COM : 3VTP
Reverse: long cross pattee, not entering the rim, four letters S A n R in the corners (initials of the four largest cities in the province: Sutphen Arnhem Nijmegen Roermond)
✠ MOnETA ᐤ nOVA ᐤ DE ᐤ AERnEMEnSIS
Diameter 25 mm, weight 1.98 g