Large, heavy cobalt blue decanter of great quality and color.....probably holds a quart as a guess. The bottle is hand blown and of a heavy fine quality. Quite certain this is turn of the 18th century English or Dutch glass. About 11 1/4" tall and base is 4 3/4" diameter. The stopper is concave and fire polished. There is a little snake around the top of the neck as shown. Absolutely a wonderful piece regardless of who made it. Other than that? Has a collection tag/sticker on base. Surprisingly heavy.