"Color map, on sheet 140x 242, dissected into 40 sections, mounted on linen, folded into brown slip case 35x24.5, with title"" Republica Mexicana. Carta de Comunicaciones. Segunda Hoja."" Shows railroad, post route and telegraph lines, including those extending into US, available at the end of the 19th. Century. This the second of two maps, the first map covers northern Mexico."