Air Post stamps and covers 1933, A Century of Progress Zeppelin Flight, 50c green, top sheet margin plate No.21177 block of four, full original gum with minor usual waves, NH, VF, C.v. $300 as four singles, Est. $100-$150

75.00

1938, Eagle with Shield, 6c dark blue and carmine, vertical pair imperforated horizontally, full OG, trace of hinge mark, F/VF, C.v. $300, Est. $150-$200

100.00

1969, Moon Landing, 10c multicolored, top right corner margin plate No.31401 block of four, upper right and lower left stamps without red patch on astronaut's shoulder, full OG, NH, VF, please note that all stampshave more or less rose red splashes on the yellow area of stamps (on UR stamp practically invisible) and couldn't be considered as No.C76a, Est. $150-$200

100.00

1973, Progress in Electronics, 11c multicolored, a single with vermilion and olive litho colors omitted, full OG, NH, VF, C.v. $700, Est. $300-$400

200.00

1979, Wiley Post, 25c multicolored, top right corner margin (ZIP) vertical se-tenant pair with black and blue engraved colors strongly shifted to the bottom, resulting in upper stamp has no denomination, while lowerone has "USAirmail 25c" at top instead of bottom, full OG, NH, VF and a spectacular error, a common pair is included, Est. $100-$150

75.00

1983, Summer Olympics, 40c x4 multicolored, top left corner sheet margin plate No.2222 imperforated se-tenant block of four, full OG, NH, VF, C.v. $650, Est. $300-$400

200.00

1985, Trans-Pacific Air Mail, 44c multicolored, top left corner sheet margin vertical imperforated pair, full OG, NH, VF, C.v. $600, Est. $250-$300

150.00

1989, 20th UPU Congress, Futuristic Mail Delivery, (45c) multicolored, se- tenant block of four with light blue (engraved) color omitted (country name and denomination), full OG, NH, VF, C.v. $500, Est. $250-$300

150.00

1991, Harriet Quimby, 50c multicolored, bottom margin vertical pair imperforated horizontally, perfect condition, full OG, NH, VF and scarce, C.v. $900, Est. $400-$500

250.00

Zeppelin Flights 1925 (May 8-10), Airship Los Angeles Return Flight cover from San Juan to Lakehurst to Cleveland, franked by Franklin 3c green in vertical imperforated pair, red three- line confirmation cachet,postmarked on reverse, F/VF, Sieger #20W, _E250, Est. $130-$160

80.00

1930 (June 3-6), 1st Europe - Pan America Round Flight postcard, delivered on legs Lakehurst-Seville, Seville- Friedrichshafen, franked by Zeppelin stamp of 65c green, red German and violet American confirmation markings,Friedrichshafen "6.6.30" arrival, the card returned to US by ship on June 18 (green Zeppelin marking is alongside at the bottom), VF, Sieger #64A, Est. $100-$150

75.00

1933 (October 23-November 2), Century of Progress Flight, three US covers on legs Miami - Chicago, Chicago - Friedrichshafen and Akron (second landing) - Friedrichshafen, each one franked by "Baby" Zeppelin50c green, each one with appropriate markings and arrival ds, mostly VF, Est. $150-$200

100.00