Royal Naval Division 1916 silver RND anchor sweetheart brooch

A rare First World War hollow silver Royal Naval Division sweetheart brooch, with gold plated RND letters, the reverse bearing Birmingham silver hallmarks for 1916 and maker's details 'P&T' (Pearce & Thompson). Very good condition, original pin fitting, no dents or distortions, very minor wear to gold plated letters. Height 39mm