BULGARIA: 10 Leva (2000) in silver (0,925) commemorating the Bulgarian Association with the European Union. National coat of arms, date and denomination delow on obverse. Bulgarian coin design of the middle ages featuring Czar Theodor Svetoslav on reverse. Inside slab by NGC "PF 67 ULTRA CAMEO". Cert number: 6633778-002. (KM 253) & (Nikolov 314).