One time considered very rare, these large QUART sized BTM (Blown Three Mold) decanters have seem to appear on the market as of late. It may be the same examples trading hands, but it has caused the price to drop, making them very affordable. They are IMPRESSIVE early bottles! Blown in the GIII-19 pattern, these are attributed to the Keene Marlboro Street glass factory, c. 1820s. This example is particularly nice, with a CRISP mold impression, and lots of small seed bubbles. Tough to find one any better!