Me too. Skin on Frame
I'm not sure what you have, but I'd be interested to know. I recently acquired a boat which looks remarkably similar.
It's skin on frame construction.
Has a vinyl, rubber sort of covering
Metal trim and cast ends which lead me to believe this is not a one of a kind build.
About 16 ft long, fairly heavy for skin on frame, estimate 70 lbs.?
Mine came from New Haven VT.
Here are some more pics, may help someone identify it.