I agree with Mark, beautiful ball!
The 1929 A's were arguably one of the greatest teams ever!!
The top photo is of Lefty Grove in 1929.
The album page signed in fountain pen is from the same era.
My framed piece that incorporates the aforementioned album page features a photo of Lefty Grove that I believe might be from 1931.
Mark, if I'm not mistaken, I bought the 1931 era photo from you a few years ago...