6c Orange, 1918 Air Post (C1). Mint N.H., gorgeous centering and color with unusually wide an (Image)

120.00

16c Green, 1918 Air Post (C2). Mint N.H. centerline block of four, outstanding centering, dee (Image)

$ 520.00

24c Carmine Rose & Blue, 1918 Air Post (C3). Top arrow, double plate no. and double "TOP" blo (Image)

$ 1,150.00

10c Lindbergh, Booklet Pane, Tab at Bottom (C10a var). Complete unexploded booklet of two Min (Image)

$ 12,500.00

65c-$2.60 Graf Zeppelin (C13-C15). Mint N.H., 65c with minor gum skips and bends, $1.30 with (Image)

$ 1,900.00

65c-$2.60 Graf Zeppelin (C13-C15). Rich colors, 65c natural gum wrinkle at right, Fine-Very F (Image)

$ 1,155.00

65c-$2.60 Graf Zeppelin (C13-C15). Small accumulation, unused incl. 65c (four, two with thins (Image)

$ 6,560.00

65c Graf Zeppelin (C13). Extra wide margins and choice centering, "Lakehurst, N.J." straig (Image)

$ 165.00

$1.30 Graf Zeppelin (C14). Extra wide margins and precise centering, neat machine slogan canc (Image)

375.00

$2.60 Graf Zeppelin (C15). Outstanding centering with wide margins, neat machine slogan cance (Image)

$ 600.00

5c Winged Globe, Air Post (C16). Mint N.H., excellent centering, rich color, Extremely Fine G (Image)

$ 8.75

25c Trans-Pacific (C20). Mint N.H., flawless centering, brilliantly fresh, Extremely Fine Gem (Image)

$ 1.40

Air Post Balance. Eleven unused stamps, Nos. C1-C6 with extra C6, C13 (2) and C14 (2), few Mi

E. $ 500-750

Great Seal Experimental Die Proof, Vignette of the Air Post Special Delivery Issue. Die proof (Image)

E. $ 1,500-2,000

16c Black, Air Post Special Delivery, Large Die Trial Color Proof on India (CE1TC1e). On 203 (Image)

$ 4,000.00

16c Dark Blue, Air Post Special Delivery, Small Die Proof on Wove (CE1P2). Measuring 45 x 27m (Image)

$ 4,000.00

16c Dark Blue, 16c Red & Blue, Air Post Special Delivery, "Specimen" Overprint (CE1S-CE2S). E (Image)

E. $ 500-750

16c Dark Blue, Air Post Special Delivery (CE1). Lightly hinged, full top plate no. 21314 bloc (Image)

E. $ 400-500

16c Dark Blue, Air Post Special Delivery (CE1 var). Wide top plate no. F21315 block of six, w (Image)

E. $ 200-300

16c Red & Blue, Air Post Special Delivery, Horizontal Pair, Imperforate Vertically (CE2a). Mi (Image)

$ 5,250.00

16c Red & Blue, Air Post Special Delivery, Horizontal Pair, Imperforate Vertically (CE2a). Mi (Image)

$ 10,500.00

First American Rocket Airplane Flight, Feb. 23, 1936. Three items, two with No. CE1 used with (Image)

E. $ 400-500

16c Red & Blue, Air Post Special Delivery (CE2). Tied by "Redding Calif., Aug. 24, 1943" mach (Image)

E. $ 300-400