Collection
Counties
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Roberts County
Cadastral "tracing" map of Roberts County, Texas in the Panhandle Plains region. Some borders and features are marked in color, including the center of the county. Scale ca. 1:133,334 (4000 varas per inch).
Date:
June 27, 1884
Creator:
unknown
Object Type:
Map
System:
The Portal to Texas History
Valve.
Patent for a new and useful valve for "controlling the flow of steam, compressed air, water, or other fluid" (line 12 - 14).
Date:
December 27, 1898
Creator:
Mitchell, Charles Bradley
Object Type:
Patent
System:
The Portal to Texas History