Bottle of Listerine produced by Lambert Pharmacal Company; glass with cork stopper. Bottle has "Listerine" written in raised letters toward the top and "Lambert Pharmacal Company" written in the same toward the bottom. On the very bottom of the bottle is a raised symbol consisting of an oval and diamond overlapping at their respective centers with a small dash mark appearing in the area where the two shapes overlap, around this symbol the numbers six, twelve, and seven can be seen, also raised.