London small round picture frame

hi
can anyone help me with date and maker of this please
its from a small round photo frame
i know its london just not sure of the maker and year.
thank you in advance.
gaz.
P1030980 (Large) (Custom).jpg

The year is 1917 but unfortunately the maker is unknown to me. He may have specialised in frames as that is all I have seen with his mark.

thank you for that information very useful, i didnt realise it was so old.