- United States, Post Office Dept
- Digital Commonwealth
- Boston Public Library
- United States Post Office Dept
Also shows railroads and counties. Prime meridians: Washington, D.C. and Greenwich. Inset: North-western portion of Texas. The service on this diagram brought up to date of Oct. 1st. 1891. Published by order of Postmaster General John Wanamaker under the direction of C. Roeser, Jr., Topographer, P.O. Dept.
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