Corinphila Auction 291-297 Day 4

Mexico City 1861: Cover fronts (2) from Mexico City to Mazatlan, a distance of some 500+ miles and in insurrection against the Conservative / Imperial Govt., with 26 Oct. 1862 cover front bearing 2 r. black on pink tied by Mexico network cancel with "CORREOS / MEXICO" datestamp adjacent (Oct. 26) and endorsed "Por la via de Durango", and a second front from the same correspondence franked 1 r. black on green and 2 r. black on pink similarly cancelled (Nov. 2) endorsed "Por la via de Morelia y Colima". Despite faults a most unusual pairing.