The most persistent atlas map of antebellum Maine was A New Map of Maine, which appeared in twenty-eight variants between 1833 and 1860: a remarkable number. Henry Schenck Tanner, a prominent Philadelphia map publisher, created it for his [New] Universal Atlas (published in sections from 1833, then as a single work from 1836) [map 18]. A variety of other Philadelphia publishers issued the atlas after 1842. In 1846, S. Augustus Mitchell took Tanner’s name off the map and added his own, during a failed experiment in color printing [24, in the central floor case]. Further issues of the map continued to appear with updated content and bearing various publishers’ names [19-23].