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

https://edisondigital.rutgers.edu/document/D7719ZCC

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Title

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

Editor's Notes

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

Folder/Volume ID

D7719-F

Microfilm ID

14:943

Document ID

D7719ZCC

Publisher

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