The previous header photo was a design cartoon kicking around the Interwebs. There was no explanation attached but, if I engage in a bit of speculation, it seems to be a developed ply concept for a Classic Moth. Bill Schill did his last Maser conversion very similar to this, a radical looking Moth. Bill's Maser concept was very slow. Unfortunately, I have no photos of Bill's last Maser. It seems to me you could build a credible Classic Moth if you glommed some topsides onto the back half of the boat. It would take some tinkering; should be an easy build, though probably not a racing shape.
George A. has more on Bill Schill over at his Mid-Atlantic Musings blog.
Update: January 18, 2021 - It turns out this design cartoon was actually built. She is a Classic Moth design by Bertrand Warion, a prolific builder of Moths, whose design and building inventiveness has been featured in many posts on Earwigoagin. Bertrand writes of this bend-em-up design;
"The Moth Classique is "Zazou" I designed in 2002/2003? The boat was made from one sheet plywood, 5mm exterior grade. [It] was easy [to build] and quite fast but the mast was not stiff enough. [She] is now destroyed. [There] is only one photo remaining."
Zazou is Moth number 203 to the right of this gaggle of classic Moths running downwind.