Russia Mint Sets (3) 1974 (9 coins, One Rouble to One Kopek) UNC, 1975 (9 coins, One Rouble to One Kopek), 1976 (9 coins, One Rouble to One Kopek), UNC some coins with toning, in the cases of issue in the Leningrad Mint dated envelopes
Estimate: 100-300 GBP