Yes, this matches the boat quite well. The gunwales are now mahogany (outside) and ash (inside) so it has been rebuilt at some point. The boat has been fiberglassed and I see no evidence of a keel. I had to look up what a sponson is, and I see nothing like this on the boat. I'd be curious to see a picture of what these looked like originally. Seats and gunwales appear to be the original ash. The cedar planking and ribs are all in good shape, and seem to be original.
I am a new member and would like to see this boat go to someone who could restore it. We love paddling in it but it's getting too heavy for me to lug around. I will likely post it for sale here at some point.
Bob Seymour