published by J.H. Colton & Co. Relief shown by hachures. Latitudinal and longitudinal lines. Prime meridians: Greenwich and Washington. Coordinates... J.H. Colton & Co.
Relief shown by hachures. Latitudinal and longitudinal lines. Prime meridians: Greenwich and Washington. Coordinates approximate and based on Green... J.H. Colton & Co.
1855. J.H. Colton & Co. Illustrated map of Georgetown and Washington, D.C., 1855. Map includes illustrations of the Smithsonian, Washington Monument, and the Capitol Build... J.H. Colton & Co.