1866-1940s [1] 1866 1c blue pair '69 1866' opt, from Jalapa to Puebla, [2] 1886 1c pair & 3c Hidalgo on cover from Sahuaripa to Philadelphia, nice Nogales, Arizona transit, [3] c.1900 5c blue Statue on cover to Philadelphia x2 (both poor) one from Gomex Palcia and the other from Torreón, [4] 1903 1d purple Eagle on tiny official cover from the Government of San Luis Potosà to the Mexican Consul on El Paso, Texas, unsealed for Printed Matter rate?, [5] c.1910 cover with 10c Allende from La Mercantil Ensenada to Los Angeles, [6] 1938 use of 10c & 20c on illustrated cover from Mexicali to Tijuana. (8) (Image1)