Collection
Serial/Series Title
Counties
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Llano 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
Blanco 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
Well-Casing Grapple
Patent for a well-casing grapple, allowing a positive grip when lowering casing or pipe within a well, or withdrawing it therefrom, without the danger of slipping or accident.
Date:
April 30, 1918
Creator:
Artzt, Erich C.
Object Type:
Patent
System:
The Portal to Texas History