RUSSIA: Coin set of 6 coins in copper-nickel-zinc commemorating the Russia XXII Summer Olympics Moscow 1980, composed of 1x 1 Ruble (1977), 1x 1 Ruble (1978), 2x 1 Ruble (1979) & 2x 1 Ruble (1980). Inside official case. (Y# 144+153.1+164+165+177+178). Proof-like.