Watch List notes:

RUSSIA, Union of Soviet Socialist Republics. 1923-1991. Platinum 150 Roubles (28mm, 15.53 g, 12h). Games of the XXII Olympiad (1980) Special Issue. Leningrad mint. Dated 1977. Emblem of the XXII Olympiad; wreath behind; date in exergue / Soviet coat-of-arms; denomination in two lines below. KM (Y) 152. UNC, trace of fingerprint on obverse.

KM reports a mintage of 9,910 specimens