1982 Central African Republic
1969 Brunei
1992 Russia
1983 Comoro Islands
1996 Burkina Faso
1964 Brunei
1966 Brunei
1970 Dominican Republic
1972 British Honduras
1974 Albania
2016 Aitutaki
400 postally used US stamps, including airmails!
Less than 60¢ per cover.
Neat variety of cork fancy cancels on early US issues.