Related? It's no question to me. It is the first Edwards sportster of 1949 shown in the SIA article posted by Paul Jaray, with its hardtop on. The car Paul shows is a roadster, but the article says "the car was a 4-seater roadster with removable hardtop and windshield"
There only other fifference is that on the puzzle photo, there are bumper guards on the bumper.
To me, Allemano did it (maybe Paul had forgotten this one).