1963 Russia
1961-63 Russia
1961 Russia
1978 Russia
1972-75 Russia
1977 Russia
1967 Russia
1969 Russia
1959 Hungary
1964 Russia
1960 Russia
1936 France
400 postally used US stamps, including airmails!
Less than 60¢ per cover.
Neat variety of cork fancy cancels on early US issues.