I agree with Truth that the first ball is a terrible forgery and the 2nd one is authentic. My reasoning on the "authentic"

ball is that the way the "M" in Mantle attaches or interacts with the "a". The M in Mantle tends to "flick upward" not with pressure, but with a natural motion of going from M to Ma.Notice in the fake, it is very labored in that area and most time it is a clear stopping starting motion, not even in the right place. The fact that the M's don't look right at all on the first ball and the c is pointing up. (Mickey's rarely pointed up, but in the forgeries, they look like they say "Milkey". Occasionally, he would not curve the c fully, but it still looks nothing like these forgeries.
The n in the forgeries are also terrible and the appear to say Mauntle.
Now in the real thing ball #2, Notice the way the M goes with the Ma. It was also rare for him to strike through the half moons. He normally came right to the exact spot and then transfered a drop of ink there. Still from what you can see # 2 looks Real #1 is not close.
Now for the GAI PICTURE.......