Mexico 1872 6c. green 2x Pairs on Folded Cover Tula de Tampas to Tampico

Folded letter, with contents, internally dated 13 September, 1872, franked with two pairs of 6c. green, overprinted "12 / 72" (Victoria District, 1872), each with large margins all around, tied by neatly-struck oval "Admon de Correos / Tula Tampas / FRANCO", to Tampico, no backstamps, some separation along folds, particularly at top, light filing fold crossing top of adhesives, a scarce and attractive franking. (Sc. 93)