The Prestamp Period of El Salvador (1525 – 1866) by Guillermo F. Gallegos and Joseph D. Hahn.
Published by the Collectors Club of Chicago in an edition limited to 300 copies. An exceptional book with respect to understanding the postal operations of all of early Spanish America and not just El Salvador though the book is devoted to El Salvador, extensively illustrated, 286 + 18 pages, of which 32 are in full color, cloth, with dj. The book will be available by the 1st week of April, 2015