WW1 “On War Service” Lapel Badge – Wallsend Slipway & Engineering Co. Ltd. – No. 658An original First World War enamelled “On War Service” lapel badge issued by Wallsend Slipway & Engineering Co. Ltd., a key industrial firm contributing to the war effort. These badges were awarded to civilian workers engaged in essential war production, signifying their exemption from military service.enamelled design incorporating O.H.M.S. (On His Majesty’s Service) alongside the company’s initials. The reverse is numbered ‘658’.In good condition complete with button hole lapel fixing.Diameter: 31mm