Julie Cartwright Antiques has dated this piece to the 1920s.

Star incised on the underside.
Hallmarks:
C&A for Collett & Anderson.
London Assay Mark.
Lion Passant.
Date letter 'k' for 1925.
Dimensions:
Diameter at widest: 12cm / 5 inches.
Height: 9.5cm / 3.6 inches.
Condition:

Very good.
Silver lid in very good condition.
Snug fit.
Glass in very good condition.
Postage:
PLEASE DO NOT FORGET TO ADD POSTAGE AT CHECKOUT.
Postage UK: £8 Special Delivery Next day.
Postage overseas: £20 International Signed For.
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To pay by card please click on button above and add P&P when prompted.
To pay by credit or debit card over the phone or by cheque, please contact me on 01449 760 585.
Julie Cartwright Antiques has dated this piece to the 1920s.
You can view the stock and full dealer information on the Julie Cartwright Antiques Profile Page