Going through some family photos, I found this. I'm not sure what exactly what this group is -- a fraternal organization? a business club? -- and I'm not sure why they seem to have a pet accordéonist ... but that's pretty dang cool! My grandfather, Charles Hinnen, fourth from the right, was around twenty-five at the time, and would have been in Zurich, but I really can't say for sure where this was.
Thanks to Peter Bernard for scanning and cleaning up this photo.
UPDATE: My blogging colleague, Owen Woods points out in comments that the box in this picture is a schwyzerörgeli, a swiss variety of accordéon. I had thought this was a type of club accordéon, but looking at the left hand side of this box it is very örgelish. Woods did a an excellent piece on the schwyzerörgeli HERE.
UPDATE TWO: I was excited to read the following comment from B.V.:
Hello, this is perhaps the accordion club in Zurich. I am looking for material on this club Zürich-Wiedikon. If you have any other photos, I'd be happy to receive mail from you. Maurice Thöni have led the club in the 1940s. Sincerely B.V. http://www.notrehistoire.ch/group/maurice-thoni/.