"SWISS CANTONS. Geneva. 1791 P - B AR Pattern or Essai 3 Sols. PCGS SP64. 2.91gm. Arms within circle, IHS in sun above / Cruciform within circle, date below. KM 89a; Richter (Proben) 1-401 (Plate coin); HMZ 2-347g Anm; Demole 254; D.T. 1015 Anm. Off-met | Flow Auctions | Flow Auctions