28-05-2020, 12:38 AM
The Lucas Control Box Model RB108 was apparently fitted to tractors, motor cycles and stationary engines - it looks no earlier than 1950's to me. You can find details of it on page 14 in the link below:
https://www.traction-owners.co.uk/wp-con...ontrol.pdf
https://www.traction-owners.co.uk/wp-con...ontrol.pdf