Royal Air Force Station Butterworth (Malaysia) blazer badge, Queen's crown

RAF Butterworth was officially opened in October 1941, as a Royal Air Force station which was a part of the British defence plan for defending the Malayan Peninsula against an imminent threat of invasion by the Imperial Japanese forces during World War II.
In 1957, the RAF closed the station. It was transferred to the Royal Australian Air Force and renamed RAAF Station Butterworth