I agree that some features make the bike look older than '62, but it's the really small details that Raleigh changed over the years: S-A trigger style, pedals, color of rear reflector housing (older was black/white came in around 1960, I believe). I also see a plastic cable guide and stop versus steel. The hockey-stick chainguard also makes me think it's more modern--or, at least, likely from '62. It is odd to have both a bottle generator and a hub generator, but perhaps the latter isn't working. Any wires hooked to it?
Neal