Lucas magneto points end housing
K2F, K1F
Anticlockwise auto adv
KVF clockwise
Triumph 3TA 1946-51
Trophy 500 1949-50
S.twin 1946-52
6T 1950-55
Norton 77 1949-55, 88 1952-57, 99 1956-57
Vincent (clockwise)
Rapide, shadow 1948-54
Velocette Mac/viper 1952-57
MSS 500 1952-57
Panther 350 1949-54
BSA A10 1950-57
A7 1947-57