Russia - USSR 1 Rouble 1987 Error
Y# 206; N# 4668; Aluminium 4,67g.; 70th Anniversary of the October Revolution; coin was minted on an aluminum blank intended for minting foreign orders at the mint. The coinage was made by original stamps without applying edge inscription. Such coins were made by mint workers for the purpose of their further sale on the black market as a sample of real coins; Corrosion; VF+.