[D8104E], Letter from De Castro (D.) & Co, J B Ramirez to Thomas Alva Edison, January 5th, 1881

Item

Abstract

Please send us all information about the megaphone. Marg: "The megaphone is a very large instrument for talking a mile away probably you refer to an instrument for the deaf. I have not had time to perfect it so as to be able to introduce it commercially."

Date

1881-01-05

Decade

1880-1889

Type

Identifier

D8104E

Folder Set

D8104

Title

[D8104E], Letter from De Castro (D.) & Co, J B Ramirez to Thomas Alva Edison, January 5th, 1881

Microfilm ID

57:36

Publisher

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