Exhibit Antiques has dated this piece to the Regency era.
England, c1830. Period of William IV.
Condition
Excellent, age-related wear as shown. There is some minor bloom within.
Dimensions
Height: 23.5cm Diameter: 17cm.
Weight
409 grams
Technical Description

An engraved 19th century green glass union decanter. Mell form with a band of engraved shamrocks thistles and roses. The piece retains its original white metal ring pull stopper and features a polished pontil.
Historical Relevance
Hand-blown and engraved to commemorate the acts of union 1801. Glass featured this style of engraving for decades after the acts were passed.
Exhibit Antiques has dated this piece to the Regency era.
Specialists in 18th & 19th century antique glass
You can view the stock and full dealer information on the Exhibit Antiques Profile Page