[D7937ZAH], Letter from Bergmann & Co, Sigmund Bergmann to Thomas Alva Edison, May 5th, 1879

Item

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Abstract

What size button in the tramsmitters now making for you? Use bell or sounder? If bell, what resistance? Marg: "1/4 inch. Want regular telephone with Bell same as you make for G&S only transmitter must have 1/4 button." Reverse marg: "what wld you sell me 60 Induction Coil my size 60 Bells 60 Transmitters 60 Switch 60 Keys-put it low down."

Date

1879-05-05

Decade

1870-1879

Type

Identifier

D7937ZAH

Folder Set

D7937

Title

[D7937ZAH], Letter from Bergmann & Co, Sigmund Bergmann to Thomas Alva Edison, May 5th, 1879

Microfilm ID

52:43

Publisher

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