United States. Post Office Department http://id.loc.gov/authorities/names/n80013583 http://viaf.org/viaf/1558686701 map on 2 sheets : col., dissected ; 146 x 93 cm., folded to 20 x 13 cm.Longitude east from Washington, D.C.; latitude north from the equator. Also gives time differential for longitudes.Boundaries of states and some postal routes in color.Backed on linen.Includes a table of distances and a table of general statistics for 1860 and 1866.Railroad routes shown.Drawn by P. Goepel and engraved by D. McClelland."The service on this diagram brought up to date of Decr 29th 1866."Official seal of Post Office Department on piece.JPEGG 3721 .P8 1866 .N62900327970339015091910458engPublicPost Route MapMapsNew England1866University of Michigan