Coltons' rail-road and military map of the United States, Mexico, the West Indies &c.G.W. & C.B. Colton & Co1864In upper left margin: No. 7.Insets: Map of the Americas, Africa and a portion of Europe, showing the Atlantic and part of the Pacific oceans -- New Orleans and delta of the Mississippi, Louisiana -- Mobile Harbor, Alabama -- Key West and Tortugas, Floridcartographic