WW1 Royal Naval Air Service Pilot's Wing RNAS Sweetheart Brooch.

A rare original First World War period 'Royal Naval Air Service sweetheart brooch', large unmarked silver eagle surmounted by a Naval Crown inlaid with red enamel. Very good condition, retaining original pin fittings and perfect enamel.
Wingspan 52mm.

The Royal Naval Air Service 'RNAS' was the air arm of the Royal Navy during the First World War, it merged with the Royal Flying Corps on 1 April 1918 to form the Royal Air Force.