1877. 2002-11-21T17:13:10Z. 2022-11-15T22:35:04Z. Brown, George L. (George Lee), cartographer. O.W. Gray & Son. English. cartographic image. Public. Nebraska.
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1875. 2008-06-23T18:11:03Z. 2023-01-27T22:38:13Z. Gray, Frank A. O.W. Gray & Son. English. Public. Massachusetts, Rhode Island, and Connecticut.
1876. 2008-06-26T20:26:42Z. 2022-03-29T21:35:20Z. O.W. Gray & Son, cartographer, publisher. O.W. Gray & Son. English&French&German. Public. Philadelphia (Pa.).
1876. 2011-02-16T18:48:19Z. 2017-06-29T15:12:35Z. O.W. Gray & Son. O.W. Gray & Son. English. Public. Michigan.
