This soldier is a member of the Sheffield Volunteer Defence Corps (SVDC).
On his cap is the badge of the SDVC and on his arm, is an armband with the letters GR (George Rex). The armband was red in colour with black lettering and was worn by Volunteer Training Corps (VTC) units.
The recruiting drive for volunteers for the VTC was led by Lord Derby and was referred to as 'the Derby Scheme'.