Advertisment for lettered prescription vials on the side of these available bottles: "French square, Balto. ovals, and Phila. ovals and Blake prescription vials". Ad also features a table to show the number of dozens packed in vials by ounce; illustration of "royal seal" style bottle featured on bottom left.
A red "x" is written in red ink over "10" in body of ad to cross out that discount percentage for ovals.