RUSSIA: Lot of 13 coins in silver (0,900) composed of 4x 5 Roubles (1977), 3x 5 Roubles (1978), 2x 5 Roubles (1979) & 4x 5 Roubles (1980). Part of 1980 Moscow Olympics. (Y# 145+146+147+148+154+156+157+166+167+179+180+181+182). Proof.