1977-1980年苏联5及10卢布银币21枚一组,1980年莫斯科奥运纪念币,5卢布币含有0.4818盎司银而10卢布含有0.9636盎司银,总银量8.6724盎司,proof品相,包括原盒及3枚证书。 Soviet Union, a complete set of 21x silver proof 5 and 10 rouble coins, issued for the 1980 Moscow Olympics, dated 1977-1980:the 5 roubles contain 0.4818oz silver and the 10 roubles 0.9636oz silver, a total of 8.6724oz silver,proof, with case of issue and 3 certificates of authenticity. (21)