Watch List notes:

RUSSIA: 15 Kopeks (1915 BC) in silver (0,500). Crowned double-headed imperial eagle, ribbons on crown on obverse. Crown above value and date within wreath on reverse. Struck in Petrograd without mintmaster initials. Inside slab by PCGS "UNC Detail / Cleaned". Cert number: 45049705. (Y# 21a.3) & (Bitkin 142).