Watch List notes:

RUSSIA: 150 Roubles [1979 (l)] in platinum (0,999) part of the 1980 Olympics set. National arms divide CCCP with value below on obverse. Roman chariot racers on reverse. Inside slab by NGC "PF 70 ULTRA CAMEO / CHARIOT RACE". Cert number: 5785987-006. (Y# 176).