This folder contains correspondence and other documents relating to the Edison Crushing Roll Co., which licensed and installed Edison's crushing rolls and collected royalties for their use. The one selected item is a report to Edison from his associate, William H. Mason, concerning his visit to the Anaconda Copper Co. in Montana.

The unselected material consists of periodic reports pertaining to the operations and output of licensees, along with correspondence concerning the collection of royalties.

Courtesy of Thomas Edison National Historical Park.