MEXICO – Collin, Henry / Calman, Henry L.: Catalogue of the Stamps, Envelopes, Wrappers and Postal Cards of Mexico including the Provisional Issues of Campeche, Chiapas, Guadalajara, Etc. (1895), 117 pages, hardcover, with gold title imprint; PLUS: Ferrer Zavala, Arturo: Catálogo de Enteros Postales de México. Volumen I: 1874–1894 (2010), 273 pages, softcover. Both items in good condition. Estimate: 120 Euro