U.S.; Airmail, 1918, 6¢ Orange, Plate Block of 8, #C1, o.g., small top pl. #9155, Fine.
Scott $865.
Estimate $200-250. (Image)

Est. $200.00-250.00

U.S.; Airmail, 1918, 16¢ Green, Plate Block of 6, #C2, o.g., small top pl. #8900, Very Fine.
Scott $900.
Estimate $200-250. (Image)

Est. $200.00-250.00

U.S.; Airmail, 1918, 16¢ Green on First Flight Cover, #C2, fine to very fine, tied by JUL 15 2 AM cancel, Aero Club of America corner card, very clean, Very Fine.
Scott $800.
Estimate $200-250. (Image)

Est. $200.00-250.00

U.S.; Airmail, 1918, 16¢ Green, 24¢ Carmine Rose & Blue, Blocks of 4, #C2-C3, n.h., centered, Very Fine.
Scott $1,000.
Estimate $200-250. (Image)

Est. $200.00-250.00

U.S.; Airmail, 1918, 24¢ Carmine Rose & Blue, Plate Block of 12, #C3, n.h., top pl. #'s 8493, 8492, solid block with great color; small areas of gum skips, Fine to Very Fine.
Scott $2,000.
Estimate $600-800. (Image)

Est. $600.00-800.00

U.S.; Airmail, 1918, 24¢ Carmine Rose & Blue, Plate Block of 12, #C3, n.h., top pl. #s 8493, 8492, one adhesive with gum skips, gum bends, Fine.
Scott $2,000.
Estimate $350-450. (Image)

Est. $350.00-450.00

U.S.; Airmail, 1918, 24¢ Carmine Rose & Blue, Plate Block of 12, #C3, o.g., top pl. #s 8492 and 8493, Fine to Very Fine.
Scott $1,250.
Estimate $300-350. (Image)

Est. $300.00-350.00

U.S.; Airmail, 1918, 24¢ on First Flight Cover, #C3, sound example on business size, violet First Trip, May 15, 1918 cds, to J.J. Kleman Jr., New York, Fine to Very Fine.
Scott $750.
Estimate $150-200. (Image)

Est. $150.00-200.00

U.S.; Airmail, 1923, 24¢ Carmine, Plate Block of 6, #C6, o.g., large top pl. #14841, Very Fine.
Scott $1,850.
Estimate $400-600. (Image)

Est. $400.00-600.00

U.S.; Airmail, 1927, 10¢ Lindbergh Pane on FDC, #C10a, pos. pane, on cacheted May 26 1928 Cleveland OH cancel to Germantown PA., Fine and attractive.
Scott $800.
Estimate $250-300. (Image)

Est. $250.00-300.00

U.S.; Airmail, 1928, 5¢ Beacon Rate Change Cover Group, #C11, Around 700 in Pittsburgh box with August 1st cancels all care of "General Delivery" to several correspondences, some with cachets, covers. cat. $3 each. Ex. Friedman "Cover Corner" Stock.
Scott approximately $2,100.
Estimate $100-150.

Est. $100.00-150.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, Plate # Singles, #C13-C15, n.h., a lovely set, Fine to Very Fine.
Scott $1,750+.
Estimate $1,000-1,200. (Image)

Est. $1,000.00-1,200.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, #C13-C15, n.h.; tiny gum skip on C15, Fine to Very Fine.
Scott $1,750.
Estimate $800-1,000. (Image)

Est. $800.00-1,000.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, #C13-C15, n.h., Fine to Very Fine.
Scott $1,750.
Estimate $800-1,000. (Image)

Est. $800.00-1,000.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, #C13-C15, n.h., Fine to Very Fine.
Scott $1,750.
Estimate $800-1,000. (Image)

Est. $800.00-1,000.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, #C13-C15, n.h., Fine to Very Fine.
Scott $1,750.
Estimate $700-900. (Image)

Est. $700.00-900.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, #C13-C15, n.h.; C13 minor gum bends, C15 small gum skip, generally Fine to Very Fine.
Scott $1,750.
Estimate $800-900. (Image)

Est. $800.00-900.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, #C13-C15, n.h., Grade 80 Very Fine, 2007-08 P.S.E. certs.
Scott $1,750.
Estimate $750-850. (Image)

Est. $750.00-850.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, #C13-C15, n.h., Fine to Very Fine, 2007-08 P.S.E. certs.
Scott $1,750.
Estimate $700-800. (Image)

Est. $700.00-800.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, #C13-C15, n.h., $2.60 small spot, Fine to Very Fine.
Scott $1,750.
Estimate $650-750. (Image)

Est. $650.00-750.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, #C13-C15, n.h., 65¢ marginal, Fine to Very Fine, 2007-08 P.S.E. certs.
Scott $1,750.
Estimate $650-750. (Image)

Est. $650.00-750.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, #C13-C15, n.h., Fine to Very Fine, 2007-08 P.S.E. certs.
Scott $1,750.
Estimate $650-750. (Image)

Est. $650.00-750.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, Plate # Singles, #C13-C15, C13 n.h. (gum skips), C14 n.h., C15 very l.h.; C13 visible diagonal gum crease, Fine to Very Fine.
Scott $1,375.
Estimate $550-650. (Image)

Est. $550.00-650.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, #C13-C15, l.h., a Very Fine set.
Scott $1,105.
Estimate $550-650. (Image)

Est. $550.00-650.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, #C13-C15, n.h.; small gum skips (C13), small corner crease bottom left (C15), Grade 70 (C13), 80 (C14), 75 (C15) Fine to Very Fine, 2010 P.S.E. certs.
Scott $1,750.
Estimate $500-600. (Image)

Est. $500.00-600.00