BULGARIA: 2 Leva (1969) in copper-nickel commemorating the 25th Anniversary of Socialist Revolution, September 9, 1944. Large denomination between grain sprigs, date at bottom on obverse. Monument to the Soviet Soldiers in Plovdiv on reverse. Inside slab by NGC "MS 64 / REVOLUTION ANNIVERSARY". Cert number: 6635698-003. (KM 75) & (Nikolov 102).