GUINEA: 250 Francs (1969) in silver (0,999) commemorating the 10th Anniversary of Indepedence with bust of Alpha Yaya Diallo with spear facing. National Arms and date on reverse. Inside slab by NGC "PF 69 ULTRA CAMEO / ALPHA YAYA DIALLO". Top pop in both companies. Cert number: 5785165-004. (KM 13).