This folder contains correspondence relating to Edison's involvement in electric railways. Some of the documents pertain to proposed changes in Edison's 1880 electric railway patents. There are also two draft letters by Edison outlining costs of electric railway systems and inquiries to Edison about the construction of electric railways.

Approximately 90 percent of the documents have been selected. The following categories of documents have not been selected: routine correspondence pertaining to patent applications; letters of acknowledgment.

Courtesy of Thomas Edison National Historical Park.