Watch List notes:

World Coins, Switzerland, pattern 20 francs, 1873, two dots, no mintmark, Helvetia seated l., in ex. HELVETIA, rev. value and date within wreath (KM.Pn24; Fr.493; Richter 2-75 [R1]), certified and graded by PCGS as About Uncirculated 55
(1500-2000 GBP)