1918 6c orange, 16c green, 24c carmine rose & blue, two sets of blocks of four, including arrow and center-line, l.h. or n.h., well centered, fresh, fine-v.f. (catalogued as singles), cat. $2145 (Cat No. C1-3) (Image)

Cat. $2145, Est.$500

1918 6c orange, four center-line blocks of four, n.h., well centered, mostly v.f., cat. $1760 (Cat No. C1) (Image)

Cat. $1760, Est.$400

1918-23 selection of five graded stamps, including 6c orange (previously hinged) graded "XF 90", 16c green (previously hinged) graded "XF-Sup 95", 1923 24c carmine (previously hinged) graded "XF 90J", also used, graded "VF-XF 85J", all with 2017 PSE certificates, plus 1922 15c gray (previously hinged) graded "XF-S 95", with 2014 PFC, SMQ $485 (Image)

Est.$200

1923 16c dark blue, n.h., near perfect centering, with 2008 PSE certificate graded "XF-Sup 95" (SMQ $425) (Cat No. C5) (Image)

Est.$300

1923 24c carmine, n.h., near perfect centering, bright color, with 2019 PSE certificate graded "XF-Sup 95" (SMQ $450) (Cat No. C6) (Image)

Est.$300

1930 Zeppelin 65c-$2.60 set of three, 65c sheet margin at left, l.h., $1.30 h.r., last one n.h., all v.f., cat. $1360 (Cat No. C13-15) (Image)

Cat. $1360, Est.$500

1930 65c green, n.h., well centered, v.f., with 1995 PFC, cat. $240 (Cat No. C13) (Image)

Cat. $240, Est.$250

1933 65c green, n.h. well centered, fresh and v.f., with 2016 PFC for a block of four from which it originated, cat. $240 (Cat No. C13) (Image)

Cat. $240, Est.$200

1930 Zeppelin 65c green, used on registered Washington D.C. FDC to Buffalo, N.Y., v.f., cat. $1000 (Cat No. C13) (Image)

Cat. $1000, Est.$250

1930 $1.30 brown, n.h., well centered, natural inclusion, with photocopy of a 2009 PSE certificate (for a block of four from which it originated) graded "XF 90" (SMQ $800) (Cat No. C14) (Image)

Est.$300

1930 $1.30 brown, n.h., well centered, v.f., with 1995 PFC, cat. $550 (Cat No. C14) (Image)

Cat. $550, Est.$250

1930 $1.30 brown, machine slogan cancel, well centered, with 2018 PFC graded "XF 90" (SMQ $625) (Cat No. C14) (Image)

Est.$300

1930 $2.60 blue, n.h., well centered, bright color, with 2019 PSE certificate graded "VF 90" (SMQ $1,250) (Cat No. C15) (Image)

Est.$900

1930 $2.60 blue, n.h., perfectly centered with wide margins, beautiful color, with 2018 PSAG certificate graded "98" (SMQ $5,000) (Cat No. C15) (Image)

Est.$2,000

1930 $2.60 blue, n.h., left margin plate number single, nicely centered, with 2017 PFC certificate graded "VF 80" (SMQ $950) (Cat No. C15) (Image)

Est.$600

1930 $2.60 blue, n.h., well centered, v.f., with 1995 PFC, cat. $825 (Cat No. C15) (Image)

Cat. $825, Est.$500

1930 $2.60 blue, used, neat perfect centering, fresh color, with 2019 PSE certificate graded "XF-Sup 95" (SMQ $1,250) (Cat No. C15) (Image)

Est.$750

1911 Vin Fiz, 25c black, uncanceled on piece of official flight post card, the other side showing pilot Calbraith Rogers' portrait and portion of his plane, clear margins to just in as are almost all of the known examples, small corner crease ending in a tiny tear at top right, otherwise fine appearance of this extremely rare Air Post rarity, with 1991 PFC, also signed Diena, with his 2013 certificate. The Vin Fiz stamp was issued by Rodgers' wife for his attempted transcontinental flight in October 1911. Rodgers was competing for the $50,000 prize offered by publisher William Randolph Hearst to the first person to complete the trip within 30 days. Vin Fiz refers to the popular soft drink maker who was the sponsor of Rodgers' flight. There are 13 recorded examples of the Vin Fiz adhesive, each trimmed close at one or more sides. The copy offered here is one of only 4(!) known unused, cat. $55000 (Cat No. CL2) (Image)

Cat. $55000, Est.$27,000

1931 (10 Oct) American Legion flight cover, franked with 5c Winged Globe, used in combination with German franking, Dornier, Do-X hs and appropriate cachets, with Rio de Janeiro and Istanbul arrival pmks, signed by John Palando and further autographed by Admiral Byrd, with handstamp "Personally Carried by Russell Boardman to Istanbul Aboard the Plane Cape Cod", also an additional postcard and cover with German franking, flown on DoX to USA, fine-v.f. (Image)

Est.$500

1933 (15 July) Darius-Girenas Transatlantic flight cover franked with 3c Newburgh, tied by Brooklyn July 15 cds, also "Lituanica" and corresponding violet cachets, signed by both fliers, Kaunas July 18 arrival pmk on back, v.f. (Image)

Est.$250

1956 Rickenbacker, Eddie (1890-1973), World War I Ace and Medal of Honor recipient, 1956 FIPEX cacheted FDC signed "Capt. Eddie Rickenbacker", v.f. (Image)

Est.$100

1937 (6 May) stationery entire envelope intended to travel "by Hindenburg", with additional 37c franking, canceled Princeton, N.J., via New York (May 6, 7 P.M.), only 25 minutes before the ill-fated disaster of the "Hindenburg", posted instead by air mail to Berlin, fine and historical item (Image)

Est.$500

1937 (6 May) cover intended to travel "by Hindenburg", with 43c franking, canceled New York, May 6, 3PM, just hours before the ill-fated disaster of the "Hindenburg", addressed to Gabon, with Paris transit and Gabon arrival pmks, cover roughly opened at left, scarce historic item to uncommon destination (Image)

Est.$500