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Electric Call or Signal Apparatus.

Description: Patent for a new and improved electric call or signal apparatus. This design consists in "a telegraph or telephone circuit, the combination, with a polarized electro-magnet and a short circuit around the same, which is closed when the magnet is transversed by a constant current of a given polarity, of a battery having the proper pole to line, a switch for connecting the line and battery circuits, and a telephone in the battery circuit, whereby the telegraph or telephone line may be tested" (lines 41-49).
Date: October 18, 1887
Creator: Foster, George W.
Partner: UNT Libraries Government Documents Department

The Southwestern Historical Quarterly, Volume 69, July 1965 - April, 1966

Description: The Texas State Historical Association Quarterly Report includes "Papers read at the meetings of the Association, and such other contributions as may be accepted by the Committee" (volume 1, number 1). These include historical sketches, biographical material, personal accounts, and other research. Index is located at the end of the volume starting on page 561.
Date: 1966
Creator: Texas State Historical Association
Partner: Texas State Historical Association

[Derailed N de M Locomotive]

Description: Photograph of a derailed N de M locomotive train. The engine number is 862. Insurrectos have surrounded what is left of this train and appear to be salvaging whatever supplies that they can find useful. The N de M is officially known as Ferrocarriles Nacionales de México. The N de M absorbed the Mexican Central Railroad in 1909.
Date: [1910..1920]
Creator: Aultman, Otis A.
Partner: El Paso Public Library


Description: Patent for a wire fastener for telegraph poles, which connects to the poles without the use of other wires to tie the fastener to the pole.
Date: December 24, 1907
Creator: Wilburn, Sylvester & Smith, Thomas E.
Partner: UNT Libraries Government Documents Department