JOHNSON, Alvin J. (1827?1884); COLTON, Joseph H. (1800?1893). Johnson?s New Illustrated (Steel Plate) Family Atlas, with Descriptions, Geographical, Statistical, and Historical. New York: Johnson and Browning, 1862. Folio. 92 numbered single- and double-page color maps (including vignette title), with extra unnumbered double-page map of the United States with several inset plans (?Johnson?s New Military Map of the United States showing the Forts, Military Posts??), extra unnumbered single-page map of Georgetown (?Johnson?s Georgetown and the City of Washington?), and an extra unnumbered single-page map of Russia (pale marginal browning to maps). Original half morocco over blue-green cloth framed in blind and stamped in gilt, spine gilt lettered and framed in compartments, all edges marbled (cover fore edges rubbed). A tight and clean copy.