Roy Case is generally given credit for introducing the term "recurve" to archery. Interesting is that Case hung "recurve" on static or stiff eared bows, one whose ends didn't unfold during drawing to differentiate it from bows with reflexed and curved, or full working recurves.
In 1930 George Higgins came up with a working "self" recurve or reflexed bow as it was called at the time that is a mirror image of the bow Vern is holding in the unbraced position.
Clarence Hickman applied for a patent on a full working recurve in 1935 and was rewarded with it in 1937. This was a laminated bow.
Russ Willcox's made his first fully working recurve in March 1941 and took his design from Hickman as he noted in a 1960 issue of TAM magazine.
During the late 1940s/early 1950, several folks were backing and facing these bows with fiberglass.
Bear patented a working recurve in 1953, but that is well after the design had been in use. He soon massed produced these bows.
The photo may or may not be accurately dated, but using the design or unbraced profile as a judge of the photo's dating isn't a good method in this case.
I'm assuming Bowdoc doesn't know the identity of the bow. If so, and he hasn't stated he does, then all this may be moot.
Identification of the bow and mounted quiver Vern is shown with would be useful. Likely someone out there can identify them.