Airmail, 1930, 65¢ Graf Zeppelin. Cover franked with well-centered block of 4, tied by New York Apr 26, 1930 duplex handstamp, U.S. and German flight cachets also tying, green Lakehurst Zepp receiver on reverse, Very Fine and attractive. Scott No. C13; $700 as used block  Estimate $300 - 400. $0 (Image)

Airmail, 1930, 65¢ Graf Zeppelin. Tied by Varick St Sta, Apr 20, 1930 machine postmark on 1¢ postal card, Friedrichshafen & New York receivers on front, U.S. and German flight cachets, Very Fine. Scott No. C13  Estimate $100 - 150. $0 (Image)

Airmail, 1930, 65¢ Graf Zeppelin. Tied by Bethlehem, Pa., May 31, 1930 duplex postmark on 1¢ postal card, U.S. and German flight cachets, Friedrichshafen receiver on front, green New York zeppelin receiver on reverse., Very Fine. Scott No. C13  Estimate $100 - 150. $0 (Image)

Airmail, 1930, 65¢ Graf Zeppelin. O.g., never hinged (couple minute gum skips), beautifully centered amid large oversized margins, deep rich color, exceptional freshness, Extremely Fine and choice. Scott No. C13  $400. $0 (Image)

Airmail, 1930, 65¢ Graf Zeppelin. Corner margin single, o.g., never hinged, beautifully centered amid large oversized margins, fresh with deep color, Extremely Fine, a gem position single. Scott No. C13  $425. $0 (Image)

Airmail, 1930, 65¢ Graf Zeppelin. Top plate number single, o.g., never hinged, sharp color, beautifully centered, Very Fine. Scott No. C13  $400. $0 (Image)

Airmail, 1930, 65¢ Graf Zeppelin. O.g., very lightly hinged, choice centering, rich color, Extremely Fine. Scott No. C13  $225. $0 (Image)

Airmail, 1930, 65¢ Graf Zeppelin. Top margin plate block of 6, o.g., never hinged (horizontal gum skip affecting bottom stamps), attractively centered, fresh with rich color, Very Fine. Scott No. C13  $3,000. $0 (Image)