#C2, 16c Green, gem mint single, incredibly well centered within equal margins, bright and fresh, pristine o.g., n.h., extremely fine; 2013 PSE certificate (XF-Sup 95; SMQ $425.00). (Image)

CV. $130.00

#C2, 16c Green, fresh single with fine centering tied to first flight cover being the first day of the new air mail rates by "Air Mail Service Wash. N.Y.. Phila./ New York/Jul 15 1918" duplex, backstamped Philadelphia on July 10th in error, desirable small size envelope with Scott Stamp & Coin Co. corner card, also with interesting "Send a letter by Airplane,/Especially to one "over there"/It will be a real treat." slogan h.s. on the reverse, very fine. (Image)

CV. $800.00

#C4-6, 8c-24c 1923 Air Posts cplt., all three values, each on individual first day covers tied by Washington, D.C. machine cancels on the appropriate fist day of issuance, very fine set.. (Image)

CV. $1,750.00

#C5, 16c Dark blue, well centered single tied to FDC by "Washington, D.C./Aug 1, 1923 Machine cancel, serviced and attractively addressed to Mr. O. L. Ballard of that city with violet h.s. "First Day Cover" with star cachet at top left., very and pretty cover. (Image)

CV. $600.00

#C6, 24c Carmine, attractive single tied to petite FDC by "Washington, D.C./Aug 21, 1923 duplexes, backstamped Benton Harbor, Michigan, fresh and very fine; 1990 PF certificate. (Image)

CV. $750.00

#C13-15, 65c-$2.60 Graf Zeppelins cplt., fresh colors, o.g, $1.30 with light h.r., fine-very fine. (Image)

CV. $1,155.00

#C13-15, 65c-$2.60 Graf Zeppelins cplt., attractively centered singles tied by "Varick St. Sta. N.Y." slogan machine cancels of April 28-29, 1930 to flown postal cards (#UX27) or cover ($2.60), appropriate U.S. and German flight cachets and Friedrichshafen arrival postmarks, fine-very fine. (Image)

CV. $1,200.00

#C13, 65c Graf Zeppelin, excellent centering within large margins, strong rich color, o.g., n.h., extremely fine. (Image)

CV. $275.00

#C14, $1.30 Graf Zeppelin, a fabulous quality used example, perfectly centered within large margins, strong rich color and a crisp impression, lightly cancelled, an extremely fine gem in every regard; 2012 PSAG certificate (Superb 98; SSV $2,000.00). (Image)

CV. $375.00

#C21, 20c Green, perfectly centered within rather large margins, bright fresh color, o.g., n.h., superb; 2014 PSE certificate (Superb 98; SMQ $225.00). (Image)

CV. $11.00