Thanks Jim and Jeff!
I'm working on a Bennett Park dating guide and some of the stadium features happened to stand out to me.
I can't speak to why Cobb would be wearing a Cleveland uniform; But I have run across a later photo with Cobb donning a Cleveland uniform with Tris Speaker auctioned at Heritage, which is clearly not Addie Joss Day either.
https://sports.ha.com/itm/baseball-c...umbnail-071515