In the shell shop proper you may watch the woman operator on some scores of processes; at one machine, she may be attacking the centre of the billet with a revolving nose, at another she may be 'turning' the outside of a shell. The shavings curl off in this process like hot bacon rind and fall in iridescent rings around her: blue, purple, peacock, or gleaming silver. Or, you may watch the woman worker 'threading' the shell, a process by which the screw threads are provided, into which the nose of the shell is afterwards fitted; or, you may stand and marvel at the skill of the worker who so deftly rivets the base-plate into the shell's lower end. But, perhaps, the most attractive operation to the visitor to the shell shop is the fitting and grooving of the shell's copper band, a process which leaves the machine and worker half-hidden in the glory of sunset tints, as the copper scrap falls thickly from the machine.
At every stage, the shell is gauged and tested, examined and re-examined, since accuracy is the watch-word of its production. Sometimes, the machine-operator will gauge her own product; at other stages, the shell passes into the hands of women overlookers of the factory, the final tests being made by Government 'viewers'. The inside, as well as the outside of the shell is submitted to such inspection, and you may see women peering into the interior of the shells, aided by the light from a tiny electric bulb, mounted on a stick. This contrivance is thrust successively into rows and rows of shells.
Women are now exclusively used for the painting of the shells, a process accomplished, not by means of a brush and paint-pot, but by the operator playing a fine electrically-worked syringe on to the surface of the shell. This process is undertaken in what is often called 'the butcher's shop', the shells, in pairs, being swung up on a rope into a compartment where the operator works from behind a protective iron screen.
In the Filling shops, women's devotion to their work has been proved once and again. Whether the process undertaken be in company of a few comrades, or in isolated huts where lonely vigils are kept over stores of explosives, the munition-girls are hardly known to flinch in their duty.