1925 10c Canal Zone Postage Due - overprint, type A, orange

1915 10c on 10c Canal Zone Postage - surcharged in red, olive brown

1930 5c on 5c bl, ovprnt

1929 10c on 5c bl, ovprnt

1924 2c Canal Zone Postage Due - overprint, type A, deep claret

1925 2c Canal Zone Postage Due - overprint, type B, carmine rose

1925 1c Canal Zone Postage Due, overprint, type A, deep green

1925 1c Canal Zone Postage Due - overprint, type B, carmine rose

1951 80c Canal Zone Airmail - Globe & Wing, light gray black

1930 2c on 5c Canal Zone Postage Due - overprint, blue

1917 12c Canal Zone - S. S. Panama, overprint type II, purple & black

1939 30c Canal Zone Airmail - Pam Am Clipper over Gaillard Cut, rose carmine

1915 2c on 2c Canal Zone Postage Due - surcharged in red, olive brown

1930 1c on 5c Canal Zone Postage Due - overprint, blue

1929 25c on 2c Canal Zone Airmail - Goethals, carmine

1951 10c Canal Zone Airmail - Globe & Wing, light red orange

1941 1c Canal Zone Official, - type 1, yellow green

1929 20c on 2c Canal Zone Airmail - Goethals, carmine

1932 5c Canal Zone Postage Due Seal, claret

1941 15c Canal Zone Postage Due Seal, claret