Going to borrow Brian's Type 1 Keeler for a comparison with this Type 2 Keeler that I used to own. This helps illustrate the point I was making about the captions being different in Type 1s vs. Type 2s. Notice in mine, they spell out "New York" but in the Type 1s, it's "N.Y." Certain words would get abbreviated in the position or city in one Type, and sometimes weren't printed the same way in the other Type.
I noticed that black smudge on the right border of the McCarthy as well. However, that's something that was more of a flaw in the photo and it makes sense that that would exist no matter which paper stock the card was printed on.
131231a-copy_lg.jpg
I think there are eight Type 2s currently known with the Waddell being the most recently discovered. Brian, I could be missing one though?? I'm also somewhat skepical about one of the other cards too. So this McCarthy would hypothetically be #9.