RUSSIA: Complete set of 28 Proof coins from 1980 Olympics series composed of 4x 5 Roubles (1977) (Y# 145/148), 4x 5 Roubles (1978) (Y# 154/157), 2x 5 Roubles (1979) (Y# 166-167), 4x 5 Roubles (1980) (Y# 179/182), 2x 10 Roubles (1977) (Y# 149/150), 4x 10 Roubles (1978) (Y# 158.1/161), 5x 10 Roubles (1979) (Y# 168/172) & 3x 10 Roubles (1980) (Y# 183/185). Inside official wooden case of issue . Proof.