WW1 Home Front Birmingham Special Constable Constabulary Police - 1916 Bronze Cap Badge

A large scarce bronze pin back badge with issue number BW293. In excellent condition.Wilkinson & Cowdell 'Special Constabulary Insignia of England & Wales' (2nd Edn) p10 refers and Figure 1 therein shows this badge being worn as a Cap Badge during WW1.K87.3