This King's Dragoon Guards WO & NCO's Arm badge is a collectable military badge from the 1930s/ 1940s. It appears to be locally made of white metal, possibly in Cairo. Linklater/Dine's Cavalry Arm Badges book refers to this on page 39. In addition there are 2 NCO chromed arm badges for the 9th/12 Royal Lancers and 13th/18th Royal Hussars respectively.