1904, 5c Blue (2). Tied by bars cancel on picture postcard of American Marines to Bristol, Pa (Image)

E. $ 200-300

1904, 5c Blue (2). Tied by purple Gorgana July 6, 1904 circular datestamp with bars cancel on (Image)

E. $ 300-400

1904, 5c Blue, Left "Panama" 2-1/4mm Below Bar (2 var; CZSG 2.1). Position 36, tropicalized o (Image)

$ 575.00

1904, 5c Blue, Colon Between Right "Panama" and Bar (2 var; CZSG 2.2). Tropicalized original (Image)

$ 575.00

1904, 5c Blue, "Canal Zone" Inverted (2a). Tropicalized original gum, deep color, well-center (Image)

$ 775.00

1904, 5c Blue, "Canal Zone" Inverted (2a). Clear handstamped overprint, tied by purple bars c (Image)

$ 600.00

1904, 5c Blue, "Canal Zone" Inverted (2a). Two singles tied to piece by purple bars cancel, m (Image)

$ 1,200.00

1904, 5c Blue, "Canal Zone" Ovpt. Diagonal, Reading Down to Right (2d). Tropicalized original (Image)

$ 800.00

1904, 10c Yellow (3). Tied by purple bars cancel, matching San Pablo July 12, 1904 cir (Image)

E. $ 750-1,000

1904, 10c Yellow (3). Tied by choice strike of blue bars cancel, matching La Boca July 12, 19 (Image)

E. $ 200-300

1904, 10c Yellow, Colon Between Right "Panama" and Bar (3 var; CZSG 3.3). Position 5, with (Image)

$ 650.00

1904, 10c Yellow, "Canal Zone" Inverted (3a). Original gum, bright color, fresh and Fine, onl (Image)

$ 775.00

1904, 10c Yellow, "Canal Zone" Inverted (3a). Bars cancel, Fine, scarcer used than unused, on (Image)

$ 600.00

1904, 2c-10c First Issue, Balance of Important Study Collection (1-3). 19 off-cover stamps an

E. $ 3,000-4,000