[NS85ADB11], Technical Note, Hugh De Coursey Hamilton, April 20th, 1885

Item

Abstract

Some kind of telegraph - grasshopper or railroad?

Date

1885-04-20

Decade

1880-1889

Identifier

NS85ADB11

Folder Set

NS85

Title

[NS85ADB11], Technical Note, Hugh De Coursey Hamilton, April 20th, 1885

Microfilm ID

162:814

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University