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United States: IV. Central [from Mississippi River to Rocky Mountains]
Map shows cities, counties, and railroads for states along and east of the Rocky Mountains and west of the Mississippi River. Includes "Index to the sectional maps of the United States" on verso. Relief shown by hachures and spot heights. Scale [1:4,870,000].
Date:
[1902..1922]
Creator:
London Geographical Institute
Object Type:
Map
System:
The Portal to Texas History
Electric Gas-Lighter
Patent for a gas lighter that is designed to be durable and reliable, with an improved method of controlling the supply of gas to the burner.
Date:
March 25, 1902
Creator:
Ruebel, C. A. Ernst
Object Type:
Patent
System:
The Portal to Texas History
Signal-Lantern.
Patent for a gas-burner signal lantern, instead of an oil-burner signal lantern, that indicates whether or not the track is all clear of trains; includes instructions and illustrations.
Date:
May 6, 1902
Creator:
Ruebel, C. A. Ernst
Object Type:
Patent
System:
The Portal to Texas History