1961-63 Russia
1967 Russia
1961 Russia
1963 Russia
1972-75 Russia
1978 Russia
1957 Russia
1971 Russia
1964 Russia
1968 Russia
1963-66 Russia
1963 Sierra Leone
1986 Russia
1974 Russia
400 postally used US stamps, including airmails!
Less than 60¢ per cover.
Neat variety of cork fancy cancels on early US issues.