Genuine 22B Lucas slide type brake light switch.
Spring operated, pull on type.
As fitted to :-
Triumph 350,500,650cc models (1964-74)
BSA Pre Unit A7,A10 models (1957-63)
Ariel,RoyalEnfield,Norton,Panther,Sunbeam, and Vincent on various models from about 1953 to 1970.
OEM: LU31437, 31437, 31445, 54033234, 22B
