Response from the finder:
Hi Sam, Thanks for the advice. I've got him indoors, so please don't
fret. I won't let him go to the RSPCA, not now anyhow. Welcat in Quinton
have said that they will take him but not till about Tuesday.
I have taken him to my cats vet to see if he's chipped, but he's not.
Thank you for your help.
Mel