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

120.00

6c Orange, 1918 Air Post (C1). Mint N.H. left arrow block of sixteen, well-centered throughou (Image)

$ 1,920.00

16c Green, 1918 Air Post (C2). Mint N.H., precisely centered with wide margins, deep rich col (Image)

$ 130.00

24c Carmine Rose & Blue, 1918 Air Post (C3). Mint N.H. left arrow block of four, remarkably w (Image)

$ 560.00

24c Carmine Rose & Blue, 1918 Air Post (C3). Mint N.H. top arrow, double plate no. 8492/8493 (Image)

1,850.00

16c Dark Blue, 1923 Air Post (C5). Mint N.H., wide margins and outstanding centering, rich co (Image)

$ 130.00

65c-$2.60 Graf Zeppelin (C13-C15). Mint N.H., each with top selvage plate no., typical light (Image)

$ 1,900.00

65c-$2.60 Graf Zeppelin (C13-C15). Mint N.H., exceptionally fresh and well-centered, Very Fin (Image)

$ 1,900.00

65c-$2.60 Graf Zeppelin (C13-C15). Mint N.H., $2.60 with trivial natural gum skip, bright col (Image)

$ 1,900.00

65c-$2.60 Graf Zeppelin (C13-C15). First two Mint N.H., gum bends, $1.30 gum skip and small a (Image)

$ 1,500.00

65c-$2.60 Graf Zeppelin (C13-C15). H.r.'s, bright colors, 65c with tiny trace of a thin speck (Image)

$ 1,155.00

65c-$2.60 Graf Zeppelin (C13-C15). 65c and $1.30 h.r., $2.60 lightly hinged, overall Fine set (Image)

$ 1,155.00

65c-$2.60 Graf Zeppelin (C13-C15). Blocks of four, each with choice centering, bright and fre (Image)

$ 5,375.00

65c Graf Zeppelin (C13). Mint N.H., wide margins and choice centering, fresh color, Extremely (Image)

$ 275.00

$1.30 Graf Zeppelin (C14). Outstanding centering with wide margins, light duplex cancel, Extr (Image)

$ 375.00

$2.60 Graf Zeppelin (C15). Precise centering with wide margins, neat machine slogan cancel, d (Image)

$ 600.00