BULGARIA: 2 Leva (1988) in copper-nickel commemorating the 100th Anniversary of Sophia University. University building, denomination and date at bottom on obverse. Half figure with open book, two dates over left shoulder on reverse. Inside slab by NGC "PF 68 ULTRA CAMEO / SOFIA UNIVERSITY". Cert number: 6389132-051. (KM 165) & (Nikolov 215).