Exhibit Antiques has dated this piece to the 1860s.
Snapped pontils.
You can see exact examples of this wine carafe on page 227 of "The Decanter, An illustrated History of Glass from 1650", by Andy McConnell, which was published in 2004 and attributed, as Nailsea glass, at that time.

However, research has moved on from 2004 and in Andy's second book, "The Decanter, Ancient To Modern", published in 2018, on page 175, they are again shown but described as 'Folk Glass', probably introduced to Nailsea (and other locations) by workers from France and could have been made in either France or England.

Examples of this carafe are very rare, they are never seen with stoppers (probably cork originally). This is the first matching pair we have ever seen.
Date & Origin
England or France, c1860
Condition
Excellent, age-related wear as shown. No chips cracks or restoration, clean and clear.
Dimensions
Height: 21.3cm Diameter: 16cm.
Exhibit Antiques has dated this piece to the 1860s.
Specialists in 18th & 19th century antique glass
You can view the stock and full dealer information on the Exhibit Antiques Profile Page