Speed Up Munitions winged bullet 1916 hallmarked silver badge

A rare original First World War period 'Speed Up Munitions silver badge' in the form of a winged bullet with blue enamel title scroll below, the reverse impressed with Birmingham silver hallmarks for 1916. Very good condition, complete with original pin fittings, enamel intact, but with minor defects.
Width 30mm.

Code: 67159