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in subjects: "railroads"  
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Block-Signaling Device.

Description: Patent for a block signaling device for railroads, which sends an audible signal as well as a telephone message to the incoming train.
Date: October 6, 1908
Creator: Fechner, William & Fechner, Albert Henry
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Texas: Pettus Quadrangle Grid Zone "D"

Description: Topographic quadrangle map of Pettus, Texas, and the surrounding area, showing towns, roads, water bodies, boundaries, water wells, schools, churches, railroads, pipelines, and landmarks. Relief shown by contours (interval 20 feet) and spot heights. Scale 1:62,500
Date: 1956
Creator: Lukesh, G. R.; Rehberg, A., Jr. & Jones, T. M.
Item Type: Refine your search to only Map
Partner: Hardin-Simmons University Library
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