Julie Cartwright Antiques has dated this piece to the 1910s.

Hallmarks:
H&A for Horton & Allday.
Birmingham Assay Mark.
Lion passant.
Date letter "r" for 1916.
Condition:
Very good.
Silver frame with no creases or scratches.
Oak back in very good condition.
Hinge on easel firm and secure.

Dimensions:
Maximum height: 23cm / 9 inches.
Width: 14cm / 5.4 inches.
Aperture:
Height: 18cm / 7.1 inches.
Width: 12cm / 4.6 inches.
PLEASE DO NOT FORGET TO ADD POSTAGE AT CHECKOUT.
Postage UK: £5 Royal Mail Tracked 24

Postage overseas: £25 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