[D7719ZCC], Letter from Thomas B A David to Thomas Alva Edison, September 21st, 1877

Item

Abstract

Does not get satisfactory results -- discusses what he has done to improve quality of sound, includes drawing

Date

1877-09-21

Decade

1870-1879

Type

Identifier

D7719ZCC

Folder Set

D7719

Title

[D7719ZCC], Letter from Thomas B A David to Thomas Alva Edison, September 21st, 1877

Microfilm ID

14:943

Publisher

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