United States. Post Office Department"Includes index to counties of Indiana." "Published by order of Postmaster General Arthur E. Summerfield." "September 3, 1957."Imprint: [Washington, D.C.] : Dept., 1957Dimensions: 104 x 66 cm; Scale: 1:443,520Coordinates: W0880700 W0840500 N0414500 N0375200JPEGVAC3073-M-01024G4091.P8 1957 .U6engUnited States. Post Office DepartmentPublicPostal servicePost route map : IndianaMapsIndiana1957Indiana University