Getting it back isn't likely. It came from one of a dozen privies that we dug from a construction site that I got permission to dig on after hours. The entire situation is sad.
Here is the other side of the D. MORTIMORE'S GREAT AMERICAN FEVER & AGUE TONIC ST. LOUIS MO. This is an aqua pontiled medicine with a lot going for it: 10-sided, embossed with the proprietor, product, and origin, and the word "AMERICAN".