U.S.; Airmail, 1918, 6¢ Orange on 3 Covers, #C1, 2 arrows and pl. # block of 4, on individual covers D.C. FEB 1, 1927 from Springfield IL, clean group, Fine to Very Fine.
Scott $392+.
Estimate $100-140. (Image)

Est. $100.00-140.00

U.S.; Airmail, 1918, 16¢ Green, Plate Block of 6, #C2, n.h., top pl. #8900, "light natural gum bend and skip in pos. 1 with three light fingerprints on gum", Fine to Very Fine, 2005 P.S.E. cert.
Scott $1,350.
Estimate $400-500. (Image)

Est. $400.00-500.00

U.S.; Airmail, 1918, 24¢ "Fast Plane", #C3, n.h., in bottom arrow block of 4, Fine.
Scott $520 as singles.
Estimate $325-375. (Image)

Est. $325.00-375.00

U.S.; Airmail, 1918, 24¢ Carmine Rose & Blue, Plate Block of 12, #C3, o.g., Fine to Very Fine.
Scott $1,250.
Estimate $350-450. (Image)

Est. $350.00-450.00

U.S.; Airmail, 1918, 24¢ Carmine Rose & Blue, Plate Block of 20, #C3, n.h., top #s 8493/8492, gum skip one stamp, two end copies h.r., rest n.h., Fine.
Scott $2,910.
Estimate $500-600. (Image)

Est. $500.00-600.00

U.S.; Airmail, 1923, 16¢ Dark Blue, #C5, n.h., 2019 Crowe cert. graded XF-SUP 95.
Scott $120.
Estimate $100-140. (Image)

Est. $100.00-140.00

U.S.; Airmail, 1923, 16¢ Dark Blue, Plate Block of 6, #C5, n.h., large top pl. #14829, "six staple holes in selvage", perf separations at upper right not mentioned on cert., Fine to Very Fine, 2005 P.S.E. cert.
Scott $2,000.
Estimate $500-600. (Image)

Est. $500.00-600.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, #C13-C15, o.g., #C15 marginal copy n.h. (glazed gum), Fine to Very Fine.
Scott $1,060.
Estimate $550-650. (Image)

Est. $550.00-650.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, #C13-C15, o.g., C15 with light gum disturbance, Fine.
Scott $1,060.
Estimate $550-650. (Image)

Est. $550.00-650.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, #C13-C15, l.h., Fine to Very Fine.
Scott $1,060.
Estimate $500-600. (Image)

Est. $500.00-600.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, #C13-C15, pl. # singles, C13 disturbed o.g., C14-15 o.g., Fine to Very Fine.
Scott $1,060+.
Estimate $500-600. (Image)

Est. $500.00-600.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, Blocks of 4, #C13-C15, n.h., $1.30 with pl. #, one copy with inclusion, excellent gum, Fine to Very Fine.
Scott $6,560+.
Estimate $2,500-3,000. (Image)

Est. $2,500.00-3,000.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, Blocks of 4, #C13-C15, n.h., excellent gum, Fine to Very Fine.
Scott $6,560+.
Estimate $2,500-3,000. (Image)

Est. $2,500.00-3,000.00

U.S.; Airmail, 1930, Graf Zeppelin Complete, Plate Blocks of 6, #C13-C15, n.h., bottom plates, nice gum, usual gum bends and wrinkles, Fine to Very Fine.
Scott $15,200.
Estimate $3,500-4,000. (Image)

Est. $3,500.00-4,000.00

U.S.; Airmail, 1930, Graf Zeppelin Complete on Commercial F.D.C., #C13-C15, tied by "Washington D.C. Apr 19 1930" First Day duplex postmarks on cacheted flown cover to Ezra Cole, small mounting scuffs on reverse. Last sold in 1981 Siegel Rarity auction (realized hammer $16,000).
Scott $10,000.
Estimate $6,000-7,000. (Image)

Est. $6,000.00-7,000.00

U.S.; Airmail, 1930, 65¢ Graf Zeppelin, Plate Block of 6, #C13, n.h., bottom pl. #20078, Very Fine, 2013 P.S.A.G. cert.
Scott $2,200.
Estimate $900-1,100. (Image)

Est. $900.00-1,100.00

U.S.; Airmail, 1930, 65¢ Graf Zeppelin, Plate Block of 6, #C13, n.h., bottom pl. #20078, Fine to Very Fine, 2013 P.S.A.G. cert.
Scott $2,200.
Estimate $800-1,000. (Image)

Est. $800.00-1,000.00

U.S.; Airmail, 1930, 65¢ Graf Zeppelin on Roessler Card, #C13, tied by Jun 1, 1930 duplex, Lakehurst to Friedrichshafen flight, couple of card wrinkles at top clear of adhesive.
Estimate $140-180. (Image)

Est. $140.00-180.00

U.S.; Airmail, 1930, $1.30 Graf Zeppelin, #C14, n.h., marginal copy, no gum skips, Fine to Very Fine.
Scott $575.
Estimate $300-350. (Image)

Est. $300.00-350.00

U.S.; Airmail, 1930, $1.30 Graf Zeppelin, #C14, n.h., Fine to Very Fine.
Scott $575.
Estimate $250-300. (Image)

Est. $250.00-300.00

U.S.; Airmail, 1930, $1.30 Graf Zeppelin, Plate Block of 6, #C14, n.h., left side #20087, "reduced selvage cut into pl. No. and a few perf separations at left", Very Fine or better centering of stamps, 2004 P.S.E. cert.
Scott $5,000.
Estimate $1,500-2,000. (Image)

Est. $1,500.00-2,000.00

U.S.; Airmail, 1930, $1.30 Graf Zeppelin, #C14, used, great copy, 2009 P.S.E. cert. graded SUP 98.
SMQ $2,150, only 2 with higher grades .
Estimate $1,500-1,700. (Image)

Est. $1,500.00-1,700.00

U.S.; Airmail, 1930, $1.30 Graf Zeppelin, #C14, used, pl. # single.
Scott $375+.
Estimate $150-200. (Image)

Est. $150.00-200.00

U.S.; Airmail, 1930, $2.60 Graf Zeppelin, #C15, n.h., 2019 Crowe cert. graded XF-SUP 95.
Scott $825.
Estimate $700-800. (Image)

Est. $700.00-800.00

U.S.; Airmail, 1930, $2.60 Graf Zeppelin, #C15, n.h., 1993 P.F. cert., 2019 P.S.E. cert. graded VF-XF 85.
SMQ $1,050.
Estimate $500-600. (Image)

Est. $500.00-600.00