hi jack 1960ish I thinks about right, I think the larger one is a 40hp twin , don't think I would like to try pull starting it 5 k off shore in a heavy swell with points ignition to play up, not to sure many people collect out boards but if any one is interested they can pm as to there where abouts , what gets me is that in there day there would have been few who could afford a new outboard ,
in fact if you wanted a boat you brought some plans ply and made one your self.
damo