Watch List notes:

BULGARIA: 5 Leva (1982) in copper-nickel commemorating the 2nd International Children Assembly. Assembly logo above denomination, bells encircle outer edge on obverse. Tower within circle, bells encircle edge on reverse. Inside slab by NGC "PF 67 ULTRA CAMEO / 2ND CHILDRENS ASSEMBLY". Cert number: 6389132-062. (KM 142) & (Nikolov 190).