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GLC07616.01
Collection Item
Typed letter signed

re: phonplex system of telegraphy

1886/08/12

Edison, Thomas Alva, 1847-1931

Edison explains that the system will: "Enable you to duplicate your way wire circuits and to add circuits to your existing through wires."

GLC07616.01
GLC07616.02
Collection Item
Typed letter signed

to James C. Parrish re: raising funds

1896/01/03

Edison, Thomas Alva, 1847-1931

For venture to separate phosphorous via magnetic process.

GLC07616.02
GLC07616.03
Collection Item
Autograph manuscript signed

Poem to Miss Jenkins, "What's the Social Tree"

1902/02/04

Edison, Thomas Alva, 1847-1931

A poem: "What's the social tree...and the tree like an Irish nurse".

GLC07616.03
GLC07616.04
Collection Item
Photograph signed

[Seated portrait of Thomas Edison]

circa 1889

Seated portrait of Edison in one of his characteristic poses. His left arm rests on the arm of the chair, while his right is propped on a nearby table, with his hand pressed against his temple. Ink inscription on mount reads, "To my friend Simpkin...

GLC07616.04
GLC07616.05
Collection Item
Photograph signed

[Photograph of Edison Machine Works building]

1881

Signed by principal lighting engineer, Charles L. Clarke. Ink inscription on mount reads, "Edison Machine Works, Goerck St., New York City, Photo, 1881." Edison established his Machine Works factory in 1881 to produce dynamos and other electrical...

GLC07616.05

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