 India briefly replaced the SEAC roundel (blue on blue) with a blue and white chakra, before adopting an orange, white and green roundel.Southern Rhodesia, the Federation of Rhodesia and Nyasaland and Rhodesia used variations on the British roundel featuring "assegais" before adopting a green ring with a lion and tusk on a white centre in 1970.Up until mid-1938, roundel sizes tended to vary widely, depending on the type of aircraft; the exception to the use of type A roundels for all aircraft was seen on the overall NIVO (dark green) painted night bombers (e.g., Handley Page Heyfords) which used type B roundels.