1934, National University issue, complete set of 18, postage, air post and postal tax stamps, three high values of air post set with sheet margins, nice centering, very fresh and choice unit, full OG, LH or previously hinged, VF, Raybaudi certificate for the "key" values, C.v. $6,114

Air Post stamps and covers

1935, Amelia Earhart violet overprint on "Eagle Man" 20c lake, nice and fresh, full OG, previously hinged, VF, only 430 stamps were produced, BPA certificate, C.v. $3,250

1939, Sarabia Flight from Mexico City to New York, registered cover franked by three stamps, including a single of 20c with Sarabia overprint, tied by "Servicio Aereo Mexico D.F." date stamp, violet flight cachet, New York arrival and several other markings on reverse, VF

200.00

1944, Symbol of Flight, set of three essays of unadopted design for 50c in various color combinations, all are in blocks of four with perfin "Muestra" (Specimen), full OG, NH, VF

200.00

1927, inverted black overprint "Oficial" on Post Office stamp of 5p green and black, full OG, previously hinged, VF, MEPSI certificate, the stamp is listed, but has no price in Scott Cat.

150.00