This is an early workshop photograph. This is probably the Newtown factory which was located at 146-158 Alice Street Newtown. This is an assembly section manufacturing Julius Tote Ticket Issuing Machines. These are electromechanical input output devices. Electromechanical computing on an industrial scale! This is long before the advent of OH&S and considerations like posture becoming important.
The Photographer's stamp reads: Hall & Co 44 Hunter St. Sydney