Mexico, Airmail, 1922, 50c yellow & black, trial color, "Muestra" overprint. Unwatermarked wove paper, imperf., block of 4, o.g., h.r. at top, never hinged at bottom, full margins, Very Fine, only 50 are said to have been printed, this block is most likely unique.
Scott No. C1TC; Estimate $750 - 1,000. Est. $750-1,000 (Image)

Est. $750-1,000

Mexico, Airmail, 1927 Eagle vignette, trial color proof in black. On "Correos Mexico" watermark paper (61x25mm), bright and fresh, fold in margin at right, Very Fine, a very rare proof (a similar example sold for $1,600 hammer in 2019).
Scott No. C2P; Estimate $750 - 1,000. Est. $750-1,000 (Image)

Est. $750-1,000

Mexico, Airmail, 1929, 10c violet, imperf between stamp and gutter margin at bottom. O.g., never hinged (natural gum wrinkle), attractive centering, usual horizontal crease in gutter, F.-V.F., very scarce. Sanabria No. 23a.
Scott No. C11 var.; Estimate $200 - 300. Est. $200-300 (Image)

Est. $200-300

Mexico, Airmail, 1929, 35c blue green, imperf between stamp and selvage at left. Left margin gutter block of 4, o.g., never hinged, fresh with rich color; small thin in gutter only, otherwise Fine. Sanabria No. 27b $1,200.
Scott No. C15 var.; Estimate $400 - 600. Est. $400-600 (Image)

Est. $400-600

Mexico, 1874-78, 10c green entire. Three entires; 1874 10c entire, Durango, 1574 control, to Durango with Nombre De Dios straight line postmark, 1878 10c entire, Apam, 5180 control, to Mexico with Calpulalpan oval cancel, and 1878 10c entire, Toluca, 982 control, to Mexico with Toluca oval date stamp, Very Fine.
Estimate; $250 - 350. Est. $250-350 (Image)

Est. $250-350

Mexico, 1874, 10c green entire, Cuautitlan. 4678 control, to Mexico canceled by Tepexi De Rio straight line handstamp (Schatzkes 1617) with manuscript "Febr, 24/79" below, Very Fine.
Estimate; $200 - 300. Est. $200-300 (Image)

Est. $200-300

Mexico, 1882, 5c + 5c violet brown entire, La Paz. 3083 control, two entires; one a corner card entire to San Francisco, Cal. with purple "La Paz, Abr 19, 1884" oval date stamp and red entry postmark, other unaddressed with name and "La Paz, Jul 3, 1883" oval date stamp favor cancels; former with small opening tears at top, F.-V.F.
Higgins and Gage No. B12a; Estimate $300 - 400. Est. $300-400 (Image)

Est. $300-400

Mexico, 1893, 2c carmine, postal card. In combination with 1890, 3c vermilion & 1893, 3c vermilion postal cards (H&G 37 & 52) sewn together and registered to Krefeld, Germany, uprated with 1890, 1c yellow green + 2c brown carmine, two singles (212+213), all tied by "Jalapa, Mar 27, 95" cds's, Mexico & N.Y. etiquettes and receiving postmark, Very Fine and unusual.
Higgins and Gage No. 51; Estimate $200 - 300. Est. $200-300 (Image)

Est. $200-300

Mexico, Numeral Issues Postal Card Usages to Foreign Destinations, 1887-1894. Group of eight cards; includes 1893 use of 2¢ card uprated with 1c to Lima, Peru, 1893 use of 2c card to Cairo, Egypt, also 3c cards to Cairo and Alexandria, other 3c card including 1894 to Russia, 1893 to Batavia, Java and 1887 to Honolulu, Hawaii, and a 5c "Servicio Interior" card to Batavia, nice array of origin and transit markings, Very Fine.
Estimate; $600 - 800. Est. $600-800 (Image)

Est. $600-800