Patent Model of Edison's Duplex Chemical Telegraph Improvement, 1874

Artifact

Model (Patent)

Date Made

circa 1873

Subject Date

1874

Creators

Edison, Thomas A. (Thomas Alva), 1847-1931 

Place of Creation

United States, New Jersey, Newark 

Creator Notes

Designed by Thomas A. Edison in Newark, New Jersey.

Keywords

Models (Patent) 

Telegraphs 

Inventions 

Communication 

Edison, Thomas A. (Thomas Alva), 1847-1931 

Location

Not on exhibit to the public.

Object ID

29.1980.1351.1

Credit

From the Collections of The Henry Ford. Gift of the Edison Pioneers.

Material

Wood (Plant material)
Brass (Alloy)
Copper (Metal)

Dimensions

Height: 1.75 in

Width: 4.5 in

Length: 12.25 in