This folder contains correspondence from inventors and others asking for Edison's advice on technical matters or his assistance in improving or promoting inventions. Comments by Edison on the incoming letters include remarks about the profits earned by inventors, references to specific technologies and scientific phenomena, and referrals to other parties. The correspondents include N.L. Wine, a resident of Fort Myers, Florida.

Less than 1 percent of the documents, including all items bearing substantive marginalia by Edison, have been selected.

Courtesy of Thomas Edison National Historical Park.