WW1 Shell Factory essential war work munitions makers badge

A scarce original First World War period official 'War Munition worker's badge' gilded brass circular example, displaying three centrally placed shells, inlaid white enamelling on a field of red, with title surround 'Essential War Work' in black; the reverse with maker's details "W&H" (Walker & Hall, Sheffield). Very good condition, retaining original pin fittings, enamel with minimal wear, an excellent example.
Diameter 28mm.

Code: 54656