Rare key fob, would like to know more

I’m trying to find our more about this keyring. I know it should be mounted on a leather fob. I think it came with a with a Jaguar bonnet mount from a Mk10 that is now mounted on an oak plinth

There is a book , but it’s quite expensive :thinking:


I have a book of Jaguar collectables I can sell cheap.

It’s the one on the right, but everything is for sale.