Watch List notes:

SWITZERLAND. Zürich. Fraumünsterabtei, 13th century. Vierzipfliger Pfennig (Silver, 18 mm, 0.35 g). ZVRIC✱H Head of Saint Felix to left. Rev. Incuse of obverse. H.U. Geiger and R. Schnyder: Der Münzfund von Winterthur-Holderplatz, in: SNR 53 (1974), pl. 23, 19, D l.2 (same die). HMZ 1-620a (same die as illustration). Very rare and darkly toned. Good very fine.