Stack's Bowers & Ponterio
Collector's Choice February 2022 Auction 22-24 Feb 2022
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1) 1973. PCGS PROOF-68 Deep Cameo. KM-82. Commemorating the 50th Anniversary of the Anti-Fascist Uprising of September 1923.
2) 1974. PCGS PROOF-65. KM-92. Commemorating the 30th Anniversary of the Liberation of Bulgaria from Fascism.