Puckerings has dated this piece to the 1920s.
The maker / retailer stamp can also be seen on the underside "Brook & Son, 87 George St., Edinburgh".

An impressive large size measuring 10 3/4" x 7 1/2" with a glazed aperture measuring 9" x 6 3/4". Superb condition with an Oak backing and folding easel stand.
Item ID:39725
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Puckerings has dated this piece to the 1920s.
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