San Marcos 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: 1919
Creator: United States. Army. Corps of Engineers.
Object Type: Map
System: The Portal to Texas History
Plow. (open access)

Plow.

Patent for an improvement to the plow by adjusting various devices for better results.
Date: April 15, 1919
Creator: Kopplin, Otto E.
Object Type: Patent
System: The Portal to Texas History