Puckerings has dated this piece to the 1920s.
The back is made from Oak incorporating a folding easel stand which looks to have been replaced at some point.

A very smart look in excellent vintage condition measuring 7 3/4" x 5 1/2" with a glazed aperture measuring 5 1/4" x 3 3/4".
Item ID: 38038
FREE Worldwide Registered Airmail Directly From London, England
Puckerings has dated this piece to the 1920s.
A quality online collection of fine english antique smalls with free worldwide shipping from london, england
You can view the stock and full dealer information on the Puckerings Profile Page