Online 1. Gray's Atlas Of The United States, With General Maps Of The World. Accompanied By Descriptions Geographical, Historical, Scientific and Statistical. By O.W. Gray, Civil And Topographical Engineer, No. 10 North Fifth Street, Philadelphia. Published By Stedman, Brown & Lyon, No. 10 North Fifth Street, Philadelphia. 1874. (on verso) Entered ... 1873, by O.W. Gray ... Washington [cartographic material]. [1874]
- David Rumsey Map Center : Map Center (large stacks) : G1200 .G7 1874 LATE ISSUE F
Online 2. The National Atlas. Containing Elaborate Topographical Maps Of The United States And The Dominion of Canada, With Plans Of Cities And General Maps Of The World. Also, Descriptions and Tables, Historical and Statistical ... Accompanied By Special, Railway, And Scientific Maps And Articles. Philadelphia: O.W. Gray & Son, No. 10 North Fifth Street. 1878. (on verso) Entered ... 1876, by O.W. Gray & Son ... Washington [cartographic material]. [1878]
- David Rumsey Map Center : Map Center (large stacks) : G1201.C28 G7 1878 F
