Watch List notes:

BULGARIA: 5 Leva (1988) in copper-nickel commemorating the Chiprovo Uprising. National arms, date and denomination below on obverse. Activists on reverse. Inside slab by NGC "PF 68 ULTRA CAMEO / CHIPROVO UPRISING". Cert number: 6389132-080. (KM 167.1) & (Nikolov 213).