Very Rare Civil War Era1864 Desilver U.S. Traveller's

Desilver, Charles (fl. c. 1850 - 1862),
Hazzard, J. L. / Drake, I. S.
Mitchell's New Traveller's Guide Through the United States...
Lithographed map.
Charles Desilver, 1864.
21 ½" x 28 ¼" sheet.
"...showing the rail roads, canals, stage roads &c. With distances from place to place. Drawn and engraved by J.L. Hazzard & I.S. Drake. Philadelphia" Folding folio pocket map. Folds into black cloth embossed covers. Three insets show the overland and maritime routes to California,, the gold and quicksilver district of California and the New England states. Also the copper mines around Lake Superior and the vicinity of Niagara Falls. Professionally backed and laid down on japan, front cover lacking.