They were called the O'Brien "Polywog". Coleman International bought out a rotational molding company in Monroe to do knee-boards and windsurfers. I believe the company had two boat molds but O'Brien only used the 8' model. I made the sail kit mock-up for them in the early 80's. They gave me a boat, it has been in my backyard and only used once, make me an offer." bank walker" is right, the Walker Bay is a nice updated version that is probably much better in terms of stability and safety.