(Click on images to enlarge)
The text reads:
Battery Oil
Made in U.S.A.
Thomas A. Edison
Incorporated
Bloomfield, N.J.
U.S.A.
The Bloomfield, N.J. locations means that this bottle dates to 1915 or later.
On the other side of the bottle, a facsimile of Thomas Edison's signature:
This site has a picture of a full and unbroken bottle, and a little more information about the use of battery oil. I haven't been able to find much information on when battery oil went out of use, but it could be as late as the 1970s, from what I understand.
You can find a photo of a battery box here (it is the smaller box; the taller one is a relay cabinet).
