Julie Cartwright Antiques has dated this piece to the 1800s.
The rounded rectangular base with seven arched wire-loop divisions and raised on four shell bracket feet.

The central bar surmounted by an oval handle. The handle flanked by two stylised wings surrounding an oval reserve.
It has a very good gauge weighing over 10 ounces, a testimony to its fine quality.
Hallmarks:

EJ B EW for Edward, Edw Junior, John & William Barnard.
Duty Mark.
Lion Passant.
London Assay Mark.
Date letter "O" for 1829.
Dimensions and Weight:
Length: 16cm / 6.2 inches.
Height including handle: 12cm / 4.6 inches.

Width: 10cm / 4 inches
Weight: 293g or 10.3 oz.
Condition:
Very good.
Sits evenly.
Postage UK: £8 Special Delivery Next day.
Postage overseas: £10 International Signed For.
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Julie Cartwright Antiques has dated this piece to the 1800s.
You can view the stock and full dealer information on the Julie Cartwright Antiques Profile Page