I can't find an image either, but the Dino Baffetti air button is similar to other Italian made accordions that I am familiar with.
(NOTE: Not ending a sentence with a preposition is a rule up with which we should not put!)
I like Dino Baffetti accordions, but I do not own one. I don't know how they compare to the "real" Gabbenelli. From what I have heard, they are very good, and much better than the ersatz, not so good Houston version. I am familiar with those, and they are over-priced and over-rated, IMHO.