Aramis Antiques has dated this piece to the Regency era.
Above this the body is cross cut, the shoulder has an oblong plain cut band, and above this are 3 neck rings, one plain and 2 cross cut. The stopper has a tiny cross cut design, interspersed with deep channel cuts. The stopper fits perfectly. Excellent condition for its age. And very sparkly.
Aramis Antiques has dated this piece to the Regency era.
You can view the stock and full dealer information on the Aramis Antiques Profile Page