LUCAS Auto Advance Ariel Huntmaster BSA A7 A10 Golden Flash Road Rocket 47503

LUCAS   Auto Advance Unit  OEM Part # 47503  NOS  New Old Stock.   MB39/A

Fits the following models:

Ariel  650 Huntmaster   1954-1957

BSA  A7  All  1947-1957

BSA 650  Golden  Flash   &  A10  1950-1957

BSA  Road Rocket   1966-1967