I.m not sure Pete, looking at my uncle he looks maybe 11 or 12 years old and he died last year I think in his late 70's early 80's.
However I will ask my aunt his sister as I don't think it's written on the back of the photograph.
My grandfather remained in the local Home Guards where I have a paper which states his promotion to Captain, I notice at the top of the letter the address is 28 Gladstone Road Chesterfield.
At some point in his life he was promoted to Major, not found that info as yet.
The photograph will be during his time with the local Cadets.