[gonzo]

At first glance, it looks real to me from the photos - the metallic borders look right to me, and the surface wrinkles look like I would expect.
But the text in the additional information turns me off.

“...the person I got this card from paid a lot of money for it with the understanding it is an original and not a reprint.”

That feels like wiggle-room text to me. “person I got this card from”, “the understanding”. That alone would turn me off on the card even if it looks real.

Also, in the second photo, of the reverse, it looks like something was written on the back under Johnson’s name - maybe the word “Pitcher”? - and then erased. Maybe a bit of Photoshop blur going on there too.

So even if it’s real, it’s probably been written on and erased, hence altered.
I would avoid it.