6c Orange, 1918 Air Post (C1). Mint N.H., vibrant color as fresh as the day it was printed, m (Image)

$ 110.00

6c Orange, 1918 Air Post (C1). Vibrant color and near perfect centering, light cancel, Extrem (Image)

28.00

16c Green, 1918 Air Post (C2). Mint N.H., exceptionally choice centering with wide and balanc (Image)

120.00

16c Green, 1918 Air Post (C2). Near mathematically perfect centering, bright color, neat doub (Image)

45.00

24c Carmine Rose & Blue, 1918 Air Post (C3). Mint N.H., mathematically perfect centering with (Image)

$ 130.00

24c Carmine Rose & Blue, 1918 Air Post (C3). Mathematically perfect centering, vivid colors, (Image)

30.00

8c Dark Green, 1923 Air Post (C4). Mint N.H., perfectly centered, beautiful rich color on fre (Image)

$ 35.00

8c Dark Green, 1923 Air Post (C4). Mathematically perfect centering, deep rich color on crisp (Image)

$ 12.50

16c Dark Blue, 1923 Air Post (C5). Mint N.H., rich color on bright paper, gorgeous centering, (Image)

$ 120.00

16c Dark Blue, 1923 Air Post (C5). Jumbo margins and precise centering, rich color complement (Image)

27.50

24c Carmine, 1923 Air Post (C6). Mint N.H., mathematically perfect centering, vivid color on (Image)

$ 130.00

24c Carmine, 1923 Air Post (C6). Mathematically perfect centering, vivid color, neat parallel (Image)

27.50

24c Carmine, 1923 Air Post (C6). Near perfect centering with wide and balanced margins, neat (Image)

$ 27.50

10c Map, Air Post (C7). Mint N.H., mathematically perfect centering, bright shade, Extremely (Image)

$ 4.00

10c Map, Air Post (C7). Mathematically perfect centering, rich color, large circular datestam (Image)

0.35

15c Map, Air Post (C8). Mint N.H., rich color, perfectly centered, Extremely Fine Gem, a beau (Image)

$ 4.75

20c Map, Air Post (C9). Mint N.H., massive Jumbo margins and mathematically perfect centering (Image)

$ 12.50

20c Map, Air Post (C9). Mathematically perfect centering, rich color, neat wavy-lines machine (Image)

2.00

10c Lindbergh, Air Post (C10). Mint N.H., mathematically perfect centering with wide margins, (Image)

$ 12.50

10c Lindbergh, Air Post (C10). Mathematically perfect centering, rich color, neat oval grid c (Image)

2.50

5c Beacon, Air Post (C11). Mathematically precise centering with Jumbo margins, remarkably fr (Image)

$ 0.85

5c Winged Globe, Air Post (C12). Mint N.H., exceptional wide margins and mathematically preci (Image)

$ 17.50

5c Winged Globe, Air Post (C12). Mathematically perfect centering with Jumbo margins, deep ri (Image)

0.50

65c Graf Zeppelin (C13). Mint N.H., mathematically precise centering with wide margins, brigh (Image)

$ 240.00

$1.30 Graf Zeppelin (C14). Mint N.H., with right plate no. 20088 selvage, intense colo (Image)

$ 550.00