Four Hercus Model A lathes in what was described as a "manufacturing plant". However, it is thought that the picture was posed in the Hercus plant and shows Fred Hercus (right) and possibly Peter and Robert Hercus and  Jack Spry.

View of the Hercus factory - probably in the 1930s - with 9-inch lathes in the fore and mid-ground ground and drills in the background

Inspection sheet for a gearbox-equipped lathe signed by R.G.Excell, a Hercus employee who was a well-known model engineer qualified to act as a boiler inspector for amateur builders.