A First War Royal Air Force (RAF) Officer's Cap Badge

A First War Royal Air Force (RAF) Officer's Cap Badge - Silver gilt insignia of the eagle surmounted by the Royal crown, with the leafed wreath below, maroon felt in the crown, black wool backer, gilt "J.R. GAUNT & SON Ltd. LONDON & B'HAM" maker mark seal on the reverse, on a dual convex frame with the three insignia held to it via two rivets each, 66.5 mm x 67.2 mm, light surface wear, edge wear on the black wool, better than very fine.