(CARTOGRAPHY) CHAPMAN, SILAS Chapman's sectional map of Wisconsin with the most recent surveys. Milwaukee: J. A. Hall & Co., 1855.Folding pocket-map (23 3/4 x 32.5 cm., sheet), with ornamental border. Folding into publisher's cloth, with letterpress label on upper cover and bookseller's advertisement to front pastedown. Lithographed by F. Mayer of New York, with period hand-coloring in outline.Rare variant of Chapman's sectional map of Wisconsin, first issued in 1853, with J. A. Hall's imprint replacing that of Chapman. Depicts the southern half of the state, with counties, towns, waterways, and railroads (both existing and proposed) identified.