Sorry Leon, I can’t answer any of those questions. The information just isn’t on the cards.
They started off recording information in what they thought was a relevant way but over time realised it just wasn’t . They rarely went back to update early cards. They only did so if they had to add fresh information such as a re registration.
For my own amusement I have listed all Utility's organised into engine types with engine numbers in order. I a send a copy if you wish. It is all the info I have.
Cheers,
