WW1 / WW2 Oxfordshire Special Constable Constabulary Police Bronze Mufti Buttonhole Badge

A bronze version (all the ones listed and illustrated in the reference below appear to be white metal or chrome) maker marked W O Lewis, Howard St, Birmingham. Worn in both World Wars, but I wonder whether bronze finish is more in keeping with a WW1 issue. Circa 3.3cms tall.

Wilkinson & Cowdell 'Special Constabulary Insignia of England & Wales' (2nd Edn) pp104-105, Fig 2 refers.

Code: 64772