BULGARIA. 20 Leva, 1963. NGC PROOF-67 Ultra Cameo.
Fr-9; KM-68. Mintage: 3,000. AGW: .4887 oz. Struck to commemorate the 100th anniversary of the Slavic Alphabet. Expertly produced, this lovely proof striking exhibits a strong cameo appearance that results from frosted designs and mirror-like fields.
Estimate: $1000 - $1500