Serial Number: Officially stamped with individual worker number 41638. Stamped on the reverse: "J.R. GAUNT & SON LTD LONDON".
WWI ON WAR SERVICE 1915 WAR WORKERS BRASS BADGE,
World War One WWI 1915 On War Service War Workers Metal Lapel Brooch Badge
WW1 British Female Munitions Worker On War Service-1916 Numbered Lapel Badge #4
British On War Service 1915 Lapel Badge Thomas Fattorini Bolton No 94652
Original WW1 Brass "On War Service" Lapel Badge dated 1915.
Hallamshire Steel & File Co. Ltd On War Service Enamel Badge