Greenwich prime meridian. "By authority of Commo: Charles Morris U.S.N., Chief of Bureau of Ordnance and Hydrography, 1853." "Lith of Endicott & Co. N.Y." 1 map: col., encapsulated in Mylar; 60 x 93 cm. This map is in the public domain. Please attribute access and use of this digitized map to the Stephen S. Clark Library, University of Michigan Library.