1979 Mongolia
1995 Laos
1998 Guinea
1987 Mongolia
1995 St. Thomas & Prince Islands
1986 Russia
1931 Mozambique Company
1984 Nicaragua
1995 Guyana
1985 Guinea-Bissau
400 postally used US stamps, including airmails!
Less than 60¢ per cover.
Neat variety of cork fancy cancels on early US issues.