Thanks again mate, I think it was this post by GrahamJohnWallace
"Interesting. A F.W. Evans A.T.B. in 531, with Saracen badges, from 1984.
I bought a silver one of these in May 1984 from F.W. Evans Kingston Branch. Apart from one black bike with frame number 0001, these were all silver, made from Reynolds 501 chromealloy and had F.W. Evans Badges."
that threw me a bit, I just didn't want to respray something if it was important..... I think I will just lacquer it as I like the patina and it's history.