1924 Greece
1963 South Arabia
1970 Dominican Republic
1945 Martinique
1969 Brunei
1971 British Honduras
1966 Brunei
1963 Sierra Leone
1976 Costa Rica
1922 Armenia
400 postally used US stamps, including airmails!
Less than 60¢ per cover.
Neat variety of cork fancy cancels on early US issues.