After giving me a name I looked at old Claud Butlers and that's what it seemed to be.Talked myself out of getting it though,it went for £36 in the end.
Thanks Mike.
Was a bargain !
Just a note about Claud Butler frames with osgear style drop outs - they normally have the letters CB stamped into them somewhere - this can help with identification as I doubt very much that CB drop outs would be on any other makers machines