Watch List notes:

WORLD COINS, RUSSIA, Soviet Union, Olympic Games, 1980, silver Proof set, comprising 10 Roubles (14), 5 Roubles (14), 1977-80 (Gadoury/Vescovi 202-7, 211-18, 224-30, 237-43) [28]. Brilliant, mint-sealed; in red case of issue £100-150