Royal Navy HMS Vanguard lifebouy sweetheart brooch

An attractive circa 1940's HMS Vanguard gilt and enamel naval sweetheart brooch, the ship's badge set upon a vivid translucent blue enamel lifebouy. Very good condition, original pin fittings, no damage to the enamel.
Height 29mm.
HMS Vanguard was Royal Navy fast Battleship built by John Brown and Company, Clydebank, Scotland, the final battleship to be launched on 30 November 1944, finally being sold for scrap in 1960.