Here is a very nice 1820-30s pint size decanter, likely made in Boston, MA by Thomas Cains. Cains was known as the “father of flint glass” and produced glass in the New England for decades. He is very well known for the “distinctive” Cains decorative treatment, described as a chain decoration, or guilloche. It was made by applying two parallel threads of glass to the exterior of the article and then pinching (or nipping) them together at regular intervals. This decanter has TWO chain decorations and TWO applied rings. Rough pontil base, and lots of base wear. The piece probably had a stopper, and it is possible to find a good match down the road. Otherwise, fine original condition!