Great photo.
I don't have a photo handy, but the oldest glass boat I owned was a ten foot 1941 Wizzard. I was looking for a dinghy for the motor sailer we took to Europe and there was an ad for "1941 fiberglass row boat" I didn't believe it, but the people selling it were the original owners and had the sales receipt. I belive that Wizard sold motors and boats through Western Auto. It was a very fine weave cloth, and not gel coated (painted inside and out) with a plywood transom (no glass over it)--screwed to the glass hull, and an oak external keel. I ruined it's historic value by glassing in the transom, putting another layer of glass on the bottom and replacing the keel with a teak keel and SS 1/2 round. I used this dinghy with a 4.5 hp outboard for 5 years and sold it with the boat. It probably was one of the very first production glass boats--and perhaps the only one which had documentation...I have never seen another one like it, but there must be a bunch out there somewhere.
In 1951, Glaspar brought a dozen 12 foot skiffs to Camp Fox, Catalina Island, where I was working. This was a prototype test to see how the boats held up with kids running them on the smooth rocks of the beach daily. One of my jobs was repair of the camp's wooden boats, so I took care of the fiberglass boats also.
In 1955 I pruchased a 13 foot Wolverine--this was a cold molded ply boat--no glass, but it had a 25 hp Johnson--drum steering and more modern controls. The 25 was also plenty of HP for skiing--as long as you went up on two and droped one for solom skiing.
Thanks for the memories of those great old boats!