GA_Boater, thanks. The current Hydra-Sports owners say their books only go back to 1998. (The company was in the hands of three previous owners.) Doesn't looks like there's a chance to follow that back. Hoping someone who owned one of these boats might be able to help. I'm usually sailing. This boat was bought to help out a friend who needed some quick cash. Glad I did. I'm rediscovering motor boating with a very stable platform through choppy water. Great boat....