Welcome to Daingerfield State Park (open access)

Welcome to Daingerfield State Park

Pamphlet providing information on Daingerfield State Park including descriptions of facilities, fees, and equipment rentals.
Date: May 2011
Creator: Texas. Parks and Wildlife Department.
Object Type: Pamphlet
System: The Portal to Texas History
Improvement in Rotary Engines. (open access)

Improvement in Rotary Engines.

Patent for improvements in valves used in rotary engines.
Date: May 9, 1871
Creator: Hughes, Robert
Object Type: Patent
System: The Portal to Texas History