Lucas, brake light switch, for various models:
Triumph Pre Unit, early Unit 350 - 500cc models (-1964)
Norton 350, 500, 600cc (50, ES2, 88, 19, 99) models (1956-65) - 029351
AJS & Matchless models (1963-) - 029351
Norton Dominator, Manxman, N15 etc
Ariel 350, 500, 650, 750cc models (-1965)
Part numbers: LU31383, 31383, 22B, 02-203, 02-9351, 029351
