C2 First flight cover, 16¢ tied by NY JUL 15 1918 cancel, addr to Washington DC, Nassau Stamp Co CC, light paper clip impression below stamp, light soiling, F-VF (Image)

Cat. $800 SE

Accum abt (300) mostly 1920s-30s air covers mostly #10 envelopes incl first flights, aviation shows, air mail week, Texas air mail flights, North Carolina air mail flights (Kitty Hawk & Kill Devil Hills), Lindbergh air mail flights & many other events, some light dup, some typical faults w/ flap marks, gen F (Proceeds benefit APS) (Image)

Est. $125-225 B

(5) Air covers, 1919 C3 on stamp dealer corner card NYC to Calif, F-VF nice strike pmk; 1930 Lipton's Shamrock V flying ship cover, Roessler type ROE-S1; 1937 USS Saratoga cancel on all-over Hawaii scene cachet w/ C21 (flap marks); 1938 Bermuda Clipper round-trip cover Baltimore to Hamilton w/ C7 & Bermuda #91 (F17-2); 1940 Honolulu C21 to Texas, Clipper all-over cachet w/ plane over tropical scene, flap marks; gen F-VF (Image)

Est. $150-200 SE

(5) Better air covers: 1931 Ship to Shore cover S/S City of Los Angeles & Goodyear "Volunteer" orange cachet, "return to sender"; 1932 USS Akron tactical training flight w/ violet cachet; 1933 (2) Century of Progress Baby Zepp covers, Germany to Pernambuco & Akron to Chicago; 1936 TIPEX cover on Hindenburg flight, franked w/ part of S/S, 10¢ & 30¢ 4th Bureau & a show label; VF (Image)

Est. $250-300 LE

Group (8) airmail covers: (2) C2 business size covers w/ Aero Club & Aerial League corner cards, handstamps; (2) C4 one Cheyenne to Pueblo, other CAM 25 first flight; C6 1925 Pottstown, PA to Calif; C18 Chicago to Akron & C18 pair Friedrichshafen to Miami; some faults on earlies, gen F-VF (Image)

Est. $250-350 LE