Here's an unopened bottle of Thomas Edison battery oil. These were used by the railroad industry in their signal batteries. Bottle is embossed as follows, EDISON BATTERY OIL MADE IN U.S.A. THOMAS A. EDISON INCORPORATED BLOOMFIELD, N.J. U.S.A. On the back has his signature, THOMAS A. EDISON. Cap has original gold finish, altho a bit tarnished. $27.50 shipped. PayPal Friends to 62mercury@logantele.com