1960 Russia
1963-66 Russia
1961 Russia
1958-59 Russia
1972-75 Russia
1918 Russia
1963 Russia
1978 Russia
1959 Hungary
1963 German Democratic Republic
1964 Russia
1986 Russia
1971 Russia
1969 Russia
400 postally used US stamps, including airmails!
Less than 60¢ per cover.
Neat variety of cork fancy cancels on early US issues.