This pocket notebook covers the period May-November 1874. It is an order book for induction coils, Edison's inductorium (an electromedical device for administering electric shocks), and ink recorders. The names and addresses of the purchasers are recorded, along with the prices and dates shipped. The cover is marked "Orders -- Induction Coils." Nineteen pages of this unnumbered book have been used.
Courtesy of Thomas Edison National Historical Park.