Genuine Lucas Classic 3 Position Toggle Switch 57SA 31788.
As fitted to numerous Norton, BSA and Triumph models including :-
Triumph 350,500cc Unit Twins (1968-74)
Triumph 650cc Unit Twins (1968-73)
Triumph T140,TR7 (1973-78)
Triumph T150 (1973-)
BSA A50,A65 Twins (1968-70)
Norton Commando (1971-75)
Lucas toggle switch, 3 positions. As used on late BSA,Triumph and Norton models.
