Exhibit Antiques has dated this piece to the 1800s.
Fully hallmarked for Birmingham 1829 and with the makers' mark ‘TS’ for Thomas Shaw. The top cartouche holds the engraved letters ‘AB’ in fine script. It is surrounded by engine-turned ‘sweet william’ flowers and a raised relief floral border, a further matching sprig to the underside.

Date & Origin
Caroline Street, Birmingham, England, 1829. Period of George IV.
Condition
Excellent, age-related wear as shown. The hinges are in full working order.
Dimensions
Length & Width: 3.1 cm x 2.1 cm

Height: 0.9 cm
Documented Examples
MET museum: https://www.metmuseum.org/art/collection/search/207441
Historical Context
Thomas Shaw was a silversmith located in Caroline Street, Birmingham, who produced a variety of items including vinaigrettes, snuff boxes, and other silver wares. He worked between 1818 and 1845 and registered this ‘TS’ mark in 1822.

Thomas Shaw vinaigrettes are known for their detailed work, including an almost diamond-cut effect on the outside and a gilt-finished interior. Some vinaigrettes also feature a machine-engraved cover and base, pierced scroll and flower grille, and cast grip.
Exhibit Antiques has dated this piece to the 1800s.
Specialists in 18th & 19th century antique glass
You can view the stock and full dealer information on the Exhibit Antiques Profile Page