Hi,
Herbert Hartley was my g-grandfather's older brother and was born around 1875. Currently family history of him is a bit sketchy, but he did take my g-grandparents' wedding portrait in 1906. By 1916 he had diversified into cinemas.
So your picture may be late Victorian, early Edwardian? Would be interested to hear if you learn anything more, as my branch of the family doesn't seem to have kept in touch!
Sarah