1934, University issue, complete set of ten, including postal tax stamp, minor usual perf irregularities, nice centering, full or large part of white unblemished gum, previously hinged, VF, C.v. $1,736

Air Post stamps

1922-29, Inaugural Flight Mexico, DF - Tepic, Eagle 50c, two copies on paper without watermark, first one is in blue and red brown, the other one - in dark blue and claret, full OG, NH, VF, the last one with Elliott guarantee hs, C.v. $360

200.00

1928, Inaugural Flight Mexico, DF - Tampico via Tuxpan, Eagle 25c carmine and brown, imperforated proof with colors closed to issued stamp, balanced margins all around, full OG, NH with insignificant gum disturbance, F/VF

200.00

1929, Inaugural Flight Tejeria - Tapachula, Eagle 25c green and brown, balanced margins imperforated copy, minor gum scratch at the bottom, large part of OG, hinged, F/VF and scarce, 50 copies were printed, Sanabria #14

400.00

1929, Aviation Week, complete set of two, full OG, NH, VF, C.v. $210

100.00

1931, Aeronautic Exhibition, 25c lake, left sheet margin imperforated block of four, full OG, NH or previously hinged (top stamps), VF, only 1000 imperforated stamps were issued, C.v. $255++

200.00

1932, black surcharge 20c on Aeronautic Exhibition of 25c lake, vertical imperforated pair, full OG, NH, VF, 1000 imperforated stamps were produced, C.v. $150

100.00

Air Post Official stamps

1929, red "Habilitado" overprint on Pan-American Postal Congress issue, complete set of seven, full OG, LH or previously hinged, mostly VF, several stamps expertized by L. Charlat and Economist Co., S. Sismondo certificate for the complete set, C.v. $525

250.00

1932, black overprint "Servicio Oficial" on Eagle 50c dark blue and claret, printed on paper without watermark, full OG, previously hinged, VF and scarce, only 100 copies were produced, Sanabria guarantee hs, MEPSI certificate, C.v. $1,000

600.00

1932, black overprint "Servicio Oficial" on Coat of Arms and Airplane of 15c carmine, perforation 12, top sheet margin copy, full OG, VLH, VF, only 300 copies were issued, several guarantee hs on reverse, S. Sismondo certificate, C.v. $350

200.00