Wednesday = Barksday
A photo that I don't think has seen print. (?)
Looks like it was shot the same day as the photo labeled "Late 1920s" at carlbarks.dk's photogallery. But I have to disagree about that date.
To me, Barks looks more like he's in his early 50's.
[Edit: He's probably in his 30's. See Gunnar Andreassens comment.]