BULGARIA: 5 Leva (1985) in copper-nickel commemorating the 3rd International Childrens Assembly. Assembly logo at top, denomination devides bells below, date lower left, child figures encircle edge on obverse. Mosaic girl and boy with flowers, child figures encircle edge on reverse. Inside slab by NGC "PF 68 ULTRA CAMEO / 3RD CHILDRENS ASSEMBLY". Cert number: 6389132-060. (KM 151) & (Nikolov 200).