I would appreciate help with dating the attached photograph. I think it relates to my Gr Grandfather and may even feature him.
I know the following about his career as an engineer/machine fitter:
1872-1878 - apprentice fitter and erector- R & W Hawthorn, Newcastle, steam locomotive builders
1881 census - engine fitter - Nash Mill papermill, Hemel Hempstead
1891 census until 1920s - machine fitter - Royal Small Arms Factory Enfield.
I wondered if anything in the photograph would date it to one of these periods.
Any help much appreciated.
Pinetree