The Lissner Collection, Lot: 70. Estimate $150. Sold for $2250. This amount does not include the buyer’s fee.

BULGARIA, Tsardom. Boris III. 1918-1943. Proof CU-NI Lev (20mm, 3.03 g, 6h). Dated 1925. Cf. KM 37 (for business strike). In NGC encapsulation graded PF 66 WINGS APPROVED. Gem brilliant proof with a hint of iridescence. Highest ever graded proof. Unlisted as a proof in KM.