1918 24c carmine rose and blue, center line block of four, n.h., well centered, v.f., with 2017 PFC (catalogue value for singles) cat. $520 (Cat No. C3) (Image)

Cat. $520, Est.$200

1923 8c-24c set of three Washington, D.C. First Day Covers, prepared by Hammelmann, all locally addressed, v.f., cat. $1750 (Cat No. C4-6) (Image)

Cat. $1750, Est.$800

1923 8c-24c set of three matching Edward C. Worden Washington D.C. FDCs, each with a "First Day Cover" hs at upper left, v.f., cat. $1750 (Cat No. C4-6) (Image)

Cat. $1750, Est.$800

1918 24c carmine, block of four, n.h., fine-v.f., with 2017 PFC (catalogue value for singles) cat. $520 (Cat No. C6) (Image)

Cat. $520, Est.$200

1926-27 10c Map (7), 15c (1), 20c (2), selection of ten mostly different FDC, various cities, first flights, many services by Albert E. Gorham, also C.E. Nickles and Hammelman, occasional toning, mostly fine-v.f. (catalogue value for covers without premium for cachets, flights and corner cards) cat. $1085 (Cat No. C7-9) (Image)

Cat. $1085, Est.$250

1927 10c Lindbergh, four different cacheted FDCs from Washington, D.C. (two including the first Mauck cachet), Detroit, Mi. and St. Louis, Mo., occasional toning, mostly fine-v.f., cat. $750 (Cat No. C10) (Image)

Cat. $750, Est.$250

1930 Zeppelin set of three, 65c-$2.60, n.h., well centered and post office fresh, last with Plate Number at bottom, v.f., signed Roumet (Cat No. C13-15) (Image)

Est.$750

1930 Zeppelin, 65c-$2.60, set of three plate number blocks of six, exceptionally well centered, n.h. and post office fresh, v.f., cat. $16050 (Cat No. C13-15) (Image)

Cat. $16050, Est.$7,000

1930 Zeppelin set of three, 65c-$2.60 used on card and two covers flown Round Flight Europe-Pan-America, last two with illustrated cachets, Seville, Rio and Friedrichshafen arrival pmks, some toning, fine-v.f. (Cat No. C13-15) (Image)

Est.$500

1930 65c Zeppelin, nicely centered single, tied by April 19 Washington postmark on flown card, with imprint cachet ("the old English" design), Seville drop, v.f., cat. $1200 (Cat No. C13) (Image)

Cat. $1200, Est.$750

1930 65c Zeppelin, used on 1c stationery card, Washington, April 19 first day cancelation, with appropriate Lakehurst and Europe-Pan-America Round Flight cachets, also on back violet rubber-stamped First Day Cover cachet, v.f. and rare (Cat No. C13) (Image)

Est.$1,000

1930 65c Zeppelin, block of four on cover, Washington, April 19 first day cancellation, with appropriate Lakehurst and Europe-Pan-America Round Flight cachets, v.f. (Cat No. C13) (Image)

Est.$1,000

1930 $1.30 Zeppelin, tied by Washington D.C. April 19 first day of issue machine cancel on card stock, having made the round trip, with appropriate cachets and small yellow and orange label of Dr. Eckener, tied on arrival in Lakehurst, v.f. (Cat No. C14) (Image)

Est.$1,000

1930 $2.60 Zeppelin, used on beautiful Washington, April 19 FDC with Friedrichshafen-Lakehurst and Europe-Pan-America Round Flight cachets, v.f., cat. $1200 (Cat No. C15) (Image)

Cat. $1200, Est.$750

1933 Century of Progress, New York, N.Y., Oct. 2 FDC, green & silver cachet, v.f. (Cat No. C18) (Image)

Est.$150

1933 Century of Progress, Miami, Fla, Oct. 6 FDC, special Miami Chamber of Commerce cachet, slight toning, otherwise v.f. (Cat No. C18) (Image)

Est.$250

1971 Apollo 15 cacheted cover cancelled Kennedy Space Center July 26, with "Landed at Hadley, Moon, July 30, 1971" endorsement and signed by David Scott and John Irwin, further signed by all three astronauts at bottom left, with USS Okinawa Aug.7 return pmk. Back of the cover is signed by H.W.Sieger and numbered "035", with "this is to certify that this cover was onboard the Falcon at the Hadley-Apennine, Moon, July 30-August 2, 1971," mounting faults, otherwise v.f. (Apollo 15 was the ninth manned mission in the Apollo program, the fourth to land on the Moon, and the eighth successful manned mission. It was the first of what were termed "J missions," long stays on the Moon, with a greater focus on science than had been possible on previous missions. It was also the first mission on which the Lunar Roving Vehicle was used. The mission began on July 26, 1971, and ended on August 7. At the time, NASA called it the most successful manned flight ever achieved. Commander David Scott and Lunar Module pilot James Irwin spent three days on the Moon, including 18 1/2 hours outside the spacecraft on lunar extra-vehicular activity. The mission was the first not to land in a lunar mare, instead landing near Hadley rille, in an area of the Mare Imbrium called Palus Putredinus (Marsh of Decay). The crew explored the area using the first lunar rover, which allowed them to travel much farther from the Lunar Module lander than had been possible on missions without the rover. They collected 77 kilograms (170 lbs) of lunar surface material. At the same time, Command Module pilot Alfred Worden orbited the Moon, using a Scientific Instrument Module in the Service Module (SM) to study the lunar surface) (Image)

Est.$4,000

1918 24c carmine & blue, v.f., used with 2c franking on flown ppc (actually a Swiss "Pro Aviazione Nazionale Svizzera" aviation postcard), Washington, May 15, 1918 to Philadelphia, v.f. and most unusual usage of a foreign card on a domestic first flight, cat. $750 (Cat No. C3) (Image)

Cat. $750, Est.$500

1931 Wiley Post & Harold Gatty Record Circumnavigation, June 21 cover with 2c canceled at Mineola, N.Y, Berlin cds (June 24) and Russian cachets, one dated June 29, signed by Post and Gatty. This circumnavigation via Newfoundland, Greenland, Russia and Alaska completed in 8 days 16 hours in the "Winnie Mae" airplane (Image)

Est.$500

1931 (21 June) Post & Gatty Around the World flight cover (franking prepaid), Minneola, NY and Berlin postmarks, also special Russian cachets, signed by both pilots, v.f. (Cat No. AAMC TO 1141) (Image)

Est.$500

1931 Hernden & Pangborn Circumnavigation Attempt, July 28 cover with USA 2c canceled at New York, Croydon Aerodrome cds (July 30), Japan 3sn canceled at Tokyo (Oct 2) and USA 2c canceled at Wenatchee, Washington (Oct 5), backstamped with a Russian cachet and cds of Khabarovsk, signed by Hugh Hernden. Pangborn and Hernden were attempting a round the world speed record when their plane became bogged down in Siberia; they then flew onto Japan but landed illegally and were detained for 12 weeks. Small tape stains at the sides, otherwise fine (Image)

Est.$750

1932 Jimmie Mattern & Bennett Griffin Circumnavigation Attempt, July 5 covers with USA Air 5c canceled at New York, Germany 4m canceled at Berlin and Russia 15k canceled at Mensk (July 7), signed by both pilots. They flew non-stop from Harbour Grace to Berlin in a record time of 8 hours 41 minutes, only a handful of covers carried (Image)

Est.$750

1932 Jimmie Mattern & Bennett Griffin Circumnavigation Attempt, July 5 covers with USA Air 5c canceled at New York, Germany 4m canceled at Berlin and Russia 15k canceled at Mensk (July 7), signed and dedicated "this envelope was carried by myself and Bennett Griffin from Floyd Bennett Field New York to Russia where we crashed our plane on our attempted flight around the world" by Jimmie Mattern. The two pilots flew non-stop from Harbour Grace to Berlin in a record time of 8 hours 41 minutes, only a handful of covers carried (Image)

Est.$1,000

1933 Jimmie Mattern Solo Circumnavigation Attempt/Levanevsky Flight cover from New York with five various Russian datestamps (5 June-5 July) and datestamps of Nome (July 21), Fairbanks (July 23), Juneau (July 25) and Edmonton (July 27), a USA 3c applied at Nome, signed by Mattern in pencil, some staining and two vertical folds, tape repair at lower edge. Mattern flew from New York on June 3rd but made a forced landing in Siberia where his plane was abandoned; he was rescued by Eskimos and flown on July 20th from Anadyr to Nome by the Russian pilot Levanevsky. He then flew from Nome to New York via Edmonton. One of the very few covers carried by Mattern and Levanevsky, the cover faults probably a result of the forced landing in Siberia and the conditions endured prior to his rescue. A rare cover (Image)

Est.$1,500

1933 Charles and Anne Lindbergh Survey Flight, July 5 typed letter to the Paris Chapter of the National Aeronautic Association of USA in France, signed Anne Lindbergh. The Lindbergh's flew from New York to Europe via Newfoundland, Labrador, Greenland and Iceland, to survey a possible air route to Europe for various commercial US airlines; they then flew to Africa and South America and back to New York, fine collateral item (Image)

Est.$250