“WISCONSIN” New York: Charles W. Morse and Samuel N. Gaston, 1857. Original wax-engraved map, with original hand color from The Diamond Atlas.(Image: 6 x 5”)
This map of the new state of Wisconsin (statehood 1848) shows county structure, towns, islands, copper mines, "fur factory" (Marquette County), and railroads (existing and proposed). It is very detailed for its miniature size (50 miles per inch).
The wax-engraving method was developed by Sidney E. Morse (brother of Samuel F. B. Morse - inventor of the telegraph). Wax engraving was “a major techno-logical breakthrough that greatly influenced American commercial map and atlas production in the U.S.” (Schwartz: Mapping of America, p. 265). This map is an early example of the process.
Presented in an archival 12 x 11'' mat