Watch List notes:

BULGARIA: 5 Leva (1988) in copper-nickel commemorating the 25th Anniversary of Kremikovski metal. National arms above denomination and date on obverse. Steel factory worker from Kremikovski on face on reverse. Inside slab by NGC "PF 68 ULTRA CAMEO / KREMIKOVSKI METAL / 25TH ANNIVERSARY". Cert number: 6389132-053. (KM 169) & (Nikolov 214).