Julie Cartwright Antiques has dated this piece to the 1910s.
Pull-off pierced cover.

The Goldsmiths & Silversmiths Co Ltd was a reputed High Street jeweller with Royal Appointments.
Hallmarks:
G&SCo Ltd for the Goldsmiths & Silversmiths Company.
Lion Passant.
Birmingham Assay mark.
Date letters "u" for 1919.

Condition:
Very good condition.
No losses to the pierced decorations.
Wirework in very good condition.
Glass in very good condition.
Dimensions:
Height: 7.5cm / 3 inches.
Diameter: 3.5cm / 1.3 inches.
Delivery:

PLEASE DO NOT FORGET TO ADD POSTAGE AT CHECKOUT.
Postage UK: £8 Special Delivery Next day.
Postage overseas: £17 International Signed For.
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Julie Cartwright Antiques has dated this piece to the 1910s.
You can view the stock and full dealer information on the Julie Cartwright Antiques Profile Page