1997 Central African Republic
1953 Cyprus
1996 Burkina Faso
1934 Cyprus
1970 Burundi
1978 Mongolia
1863 Mauritius
1969 Brunei
1983 Comoro Islands
2004 Maldive Islands
1995 Mongolia
400 postally used US stamps, including airmails!
Less than 60¢ per cover.
Neat variety of cork fancy cancels on early US issues.