Mexico 1917 Pachuca - Mexico City Experimental Flight. Tuck's post card with "The Farman Biplane" on picture side, addressed to Mexico, franked with 5¢ ultramarine tied by "Pachuca, 5-Jul.17" cds, red oversized Primer, Correo Aereo handstamp and additional red Mexican Department of Aviation handstamp, picture side signed by pilot C. Horacio Ruiz, Very Fine, an attractive and rare first official Mexico flight of only which a few examples of this flight have survived, pictured in A.A.M.C. (volume. 1, pg. 486). Estimate  $3,000 - 4,000. $0 (Image)