This folder contains correspondence and other documents relating to mines and minerals to be bought, sold, surveyed, worked, or tested. The selected items for 1916 contain remarks by Edison regarding his consumption of nickel and his unsuccessful nickel mining ventures, as well as comments about the low grade of copper at his old experimental mine in Menlo Park. Most of the selected mining-related correspondence for 1916 can be found in E-16-56 (Mining -- Metals and Other Minerals).
Less than 10 percent of the documents have been selected. The unselected material consists primarily of unsolicited requests, inquiries, business propositions, and offers of mining properties for sale. These letters were not answered or received a generic reply. Courtesy of Thomas Edison National Historical Park.