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Post Hole Auger

Description: Patent for an improved post-hole digger/auger with multiple blades that cut in a spiral pattern and has the blades adjust and lock on the base. The blade shanks form a cage and keeps dirt from clogging the blades.
Date: May 22, 1915
Creator: Hoover, Orville M. & Ardery, Sarah, J.
Partner: UNT Libraries Government Documents Department

Railway Telephone and Signal Sign

Description: Patent for Railway Telephone and Signal System (with illustrations).
Date: September 30, 1915
Creator: Neel, George E.
Partner: UNT Libraries Government Documents Department
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