WW2 Royal Naval Patrol Service Minesweeping Anti Submarine badge

A scarce ORIGINAL wartime official 1940-42 first issue pin fitting unmarked silver uniform sleeve badge, the obverse impressed with essential artist's initials 'KG' (George Kruger Gray) in top left side, the reverse impressed with registration number in relief 'Rd.837751'. Very good condition, complete with original pin fittings.Height approx 29mm.Designed by George Kruger Gray, approved by HM King George VI on 2nd February 1940.