Guaranteed original. Complete & intact. This is an original Royal Engineers Corps "George V" Cap Badge for sale. In good condition. Please see our other items for more original WW1, WW2 & post war British military cap badges for sale. The Corps of Royal Engineers, usually just called the Royal Engineers (RE), and commonly known as the Sappers, is one of the corps of the British Army. It provides military engineering and other technical support to the British Armed Forces and is headed by the Chief Royal Engineer.