States
Counties
Language
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Nell's topographical map of the state of Colorado.
Map shows late nineteenth century Colorado land offices, Native American reservations, land grants, counties, township grid, cities, towns, timber reserves, railroads, roads, irrigation canals, and natural features. Relief shown by contours, hachures and spot heights. Includes text and index. Scale [1:633,600].
Date:
1896
Creator:
Nell, Louis
Object Type:
Map
System:
The Portal to Texas History
Locomotive-Headlight.
Patent for a three-way locomotive-headlight with easily removable screens of different colors in order to send signals. The screens are easily fitted to other locomotive headlights. This invention is meant to prevent accidents that happen without proper signaling.
Date:
January 14, 1896
Creator:
Davis, Moses J.
Object Type:
Patent
System:
The Portal to Texas History