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Air-Chamber.

Description: Patent for an air-chamber that pumps in air confined with a flexible diaphragm to spray or diffuse fluid, including illustration.
Date: June 18, 1861
Creator: Creuzbaur, Robert
Partner: UNT Libraries Government Documents Department

Bastrop County

Description: Map of Bastrop County, Texas, including the Prairies and Lakes region. Austin's Colony titles are outlined in blue. Scale ca. 1:133,334 (4000 varas per inch).
Date: June 6, 1861
Creator: Von Rosenberg, W.
Partner: Texas General Land Office
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