Posted By:
Jay MillerJeff---Interesting question. Looking at the listing of Gruber poses he has two poses where he is in a pitching motion(I am not counting hands at chest). In both of those poses he is delivering as a righty. I would guess that it is less likely that both would be posed "wrong".
As to Whitney with dog, legend has it that inclusion of the dog in the photo was meant to be a joke. The dog was an image of faithfulness at the time and Whitney was the type of player who jumped from team to team. Thus, the contrast was the humor.
The classic joke card was McGreachery-Manager Indianapolis. There was no McGreachery who ever managed Indianapolis. The photo is that of Deacon White. The card, which as far as I know is unique, is pictured in Lew's Encyclopedia of Baseball Cards.