One new original Lucas brand starter drive spring, part number 250404. This fits:
Austin A30 1956
Austin A35 1957 - 1962
Austin Healey Sprite 1958-1960
MGTD & MGTF 1950 - 1955
MGA 1955-1962
Jowett Javelin 1948 - 1954
Jowett Jupiter 1951 - 1954