1976 Poland
1983 Romania
1984 St. Lucia
1985 St. Lucia
1984 Laos
1997 Benin, People's Republic of
1983 Djibouti
1987 Mali
1983 Grenada Grenadines
1997 Australia
1984 Nevis
1983 Paraguay
1980 Mongolia
1986 Mongolia
1973 Liberia
1984 Nicaragua
1986 Hungary
400 postally used US stamps, including airmails!
Less than 60¢ per cover.
Neat variety of cork fancy cancels on early US issues.