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Automatic Regulator for Pneumatic Flues

Description: Patent for a regulated valve to automatically maintain air pressure in a pneumatic conveyor flue. Excessive air pressure causes a secondary valve to open and vent the pressure while at the same time impeding air flow downstream.
Date: May 28, 1901
Creator: Caffey, Charles B.
Partner: UNT Libraries Government Documents Department

Boat-Propeller.

Description: Patent for a boat propeller, which is inexpensive and adaptable to small boats. The propeller can go forwards or backwards and use multiple oars.
Date: February 5, 1901
Creator: Caffey, John W.
Partner: UNT Libraries Government Documents Department

[Historic Marker Application: Mt. Olive Baptist Church]

Description: Application materials submitted to the Texas Historical Commission requesting a historic marker for the Mt. Olive Baptist Church, in Bastrop, Texas. The materials include the inscription text of the marker, original application, narrative, illustrations, and photographs.
Date: November 25, 2008
Creator: Texas Historical Commission
Partner: Texas Historical Commission

[Postcard for Bastrop, Texas]

Description: Postcard showing nine scenes of Bastrop, Texas. Photographs include (from left to right): (1) Piney Creek, (2) Main Street, (3) Diagonal Street, (4) Bastrop from bird's-eye view, (5) the court house and jail, (6) bridge across the Colorado River, (7) the high school building, (8) a side view of the bridge across the Colorado River, and (9) a train depot. A partially-legible note is written on the back, that says "Suppose you will be surprised to receive this postal but did think of the [...] fo… more
Date: unknown
Creator: Grissom
Partner: Private Collection of T. B. Willis
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