I'll try the sticky test when I get back.
As for it being published: Well it isn't exactly a known published photo. I did some Googling and found this Lobert photo on someone's site. It isn't exactly the same, but is similar. This person's photo WAS printed and contained a tagline on the back of it that denoted it as being Opening Day 1915 Giants against the Dodgers. This photo I could tell is definitely a later printing because it is not clear and looks like it has been reprinted a ton. The only real similarities it shares with my photo is that it is Lobert throwing at third base, but the time of day, positioning, shadows and cropping is totally different. For comparison:
