I used to belong to a classic fiberglass boat group, called the Fiberglassics, and a friend of mine had boat similar to the one that can be seen in the background. I believe it is a Glasspar Club Mariner, Cuddy. The Fiberglassics is still around and getting bigger, their website is:
http://www.fiberglassics.com/glassic-forums

Roly, ex-glasshead, now "teardrop head"