Royal Naval Patrol Service.

White metal sleeve badge with four small loops to the sides to allow it to be sewn to the uniform bearing Registration number to the reverse. A shark and two sea-mines caught in an anti-submarine net surmounted by a Naval Crown within a roped border bearing, " M / S - A / S. Worn by the men of the Minesweeping and Anti-Submarine patrols based at the " Sparrow's Nest " at Lowestoft in Suffolk.

Code: 28523