I found this loose behind the o/s head light between the the inner wing and the charcoal canister.

should it be anywhere?

Might be one of those rubber things that sir on the wing in the bonnet shut gaps?

It's a 2p (otherwise known as a tuppence).It should be in your money box

I did wonder what those round metal disks were ;-)

anyway my first thought was it was a bonnet gap stop

but it dosen't like like any of the others

and a I can't see anywhere where it would fit.

is there one the other side??

It's a 2p (otherwise known as a tuppence).It should be in your money box

Its quite a shiny tuppence, looks like its well polished

It does look like a stop for something but isn't threaded so would guess that it just pushes in somewhere.

No part numbers on it?

Perhaps bob into your local dealer and see if they have any ideas!