[D8034ZCY], Letter from D H McFann to Thomas Alva Edison, June 21st, 1880

Item

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Title

[D8034ZCY], Letter from D H McFann to Thomas Alva Edison, June 21st, 1880

Editor's Notes

Possible to make metal plate to attract precious metals from sand & gravel? For platinum? Marg: "Magnets only attract iron sand that is black sand. We have a machine that works the goldout of 150 tonsd of pure black sand per day. Platinum is worth $3 per oz. I will take all you have at the price. Send sample."

Author

Date

1880-06-21

Decade

1880-1889

Type

Identifier

D8034ZCY

Folder Set

D8034-F

Microfilm ID

54:755

Publisher

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

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