Ballinger Sheet

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date: 1917
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Hayrick Sheet

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date: 1915
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Eden Sheet

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date: 1918
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History
Automatic Controller for Cotton Trampers (open access)

Automatic Controller for Cotton Trampers

Patent for an automatic controller of cotton tramplers intended to improve piston performance and reduce need for attendant intervention.
Date: June 1, 1915
Creator: Troy W. Sparks
Object Type: Patent
System: The Portal to Texas History
Plow (open access)

Plow

Patent for improvements to plows with laterally extending adjustable wings, as well as other different styles of plow and cultivator standards, with illustration.
Date: March 9, 1915
Creator: Armentraut, Richard B.
Object Type: Patent
System: The Portal to Texas History
Pipe or Rod Grips (open access)

Pipe or Rod Grips

Patent for Pipe or Rod Grip
Date: February 20, 1917
Creator: Champie, James A.
Object Type: Patent
System: The Portal to Texas History