The Lissner Collection, Lot: 65. Estimate $150. Sold for $3500. This amount does not include the buyer’s fee.

BULGARIA, Tsardom. Ferdinand I. 1908-1918. Proof ZN 5 Stotinki (17mm, 2.4 g, 6h). Dated 1917. KM 24a; Y 18a. In NGC encapsulation graded PF 64. Superb choice proof with just a few tiny specks of toning, otherwise choice brilliant. Very rare, only specimen in proof of this type ever graded.