This 42-page court record is entitled Before the Honorable Secretary of the Interior. In the Matter of the Appeal of Edison & Harrington from the Decision of the Commissioner of Patents of March 20, 1875, to the Secretary of the Interior. Reply of Counsel for Mr. George B. Prescott to the respective Briefs of B.F. Butler, Esq., counsel for Edison, and John H. B. Latrobe and Leonard Myers, Esqs., counsel for Mr. Harrington. It can be found at the Edison National Historical Park in a volume entitled "Telegraph Law Cases -- Miscellaneous," which is the fifth of five volumes of litigation records involving rights and title to Edison patent applications pertaining to duplex and quadruplex telegraphy.
[QCE06], Legal Testimony, Grosvenor Porter Lowrey, Roscoe Conkling, 1875 1875-00-00
[QCE06358], Legal Decision, John Marshall Thacher, U.S. Patent Office. Commissioner, March 20th, 1875 1875-03-20