From the September 13, 1883 issue of The Chatham Record:
To men only, young or old, who are suffering from NERVOUS DEBILITY, LOST VITALITY, LACK OF NERVE FORCE AND VIGOR, WASTING WEAKNESSES, and all kindred diseases. Speedy relief and complete restoration of HEALTH, VIGOR and MANHOOD GUARANTEED. The grandest discovery of the nineteenth century. Send at once for Illustrated Pamphlet free. Address: Voltaic Belt Co., Marshall, Mich.
Here’s the cover of the pamphlet, for those not too nervously debilitated to read it.