cover MEXICO: TAMPICO: 1872 (27 July) entire letter from Tampico to Vera Cruz, bearing 1872 imperf. 12c. blue (just touched at foot) tied by oval "FRANCO EN/TAMPICO", in combination with Great Britain 1870 4d. vermilion Pl. 12 tied by "C63" obliterator, and showing despatch d.s. at foot; two light filing creases clear of adhesives. An attractive and rare combination cover. Photo