Antique Charles Gulden bottle. It has a slight light purple or amethyst color to it. 5 1/2" tall. It is embossed on the front: 6 oz. Embossed on the bottom: Charles Gulden New York Patented Dec 25, 1894. Many air bubbles in the glass. A crack on the bottom, but it has been there since production. When I look at it under the light and with a magnifier, the "crack" does not go through it. There are several production flaws—a great bottle.