Hello everyone,

I went online and managed to find a very unusual fuel filler cap on a Jaguar XK120.
The article that I ve read says that it comes from Le Mans cars. You can see images on the link down below.

https://www.dkeng.co.uk/ferrari-sale...aluminium.html

So I started to search on internet and dind really find anything.
I wonder if anyone knows something about it?

 

https://www.fillernecksupply.com/cob...flip-top-caps/
Is this what you mean?