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Refugio Co.

Description: Blue line print of survey map of Refugio County, Texas, showing rivers, creeks, original land grants or surveys, and towns. Scale [ca. 1:200,000] (6000 varas to the inch).
Date: 1921
Creator: Matzow, Fr & Giles, J. Bascom
Partner: Hardin-Simmons University Library

Envelop.

Description: Patent for an adjustable envelop design for storing documents and articles. This is a design with flaps within the inner fold that are made to secure and protect the document. Straps that extend from the outer edge secure the outer flap over the contents as well as the inner protective flaps.
Date: November 28, 1911
Creator: Low, Eugene
Partner: UNT Libraries Government Documents Department

Texas: Vidauri Quadrangle

Description: Topographic quadrangle map of Vidaurri, Texas, and the surrounding area, showing populated areas, boundaries, water bodies, railroads, roads, ranches, and landmarks, with relief shown by contours (interval 5 feet) and spot heights. A quadrangle location diagram is included in the lower-right corner of the map. Scale 1:62,500
Date: 1956
Creator: Geological Survey (U.S.)
Partner: Hardin-Simmons University Library

Apparatus for Obtaining a Vacuum.

Description: Patent for a new and improved vacuum. This design utilizes a liquid pump, plates, tubes and valves to make "about as perfect a vacuum . . . as can be obtained by an ordinary pump" (lines 53-55).
Date: July 27, 1880
Creator: Ward, Lyman Henry
Partner: UNT Libraries Government Documents Department