The image is a real Gehrig card. Not a particularly rare one.
https://www.psacard.com/cardfacts/ba...3-clubs/302249
Prob is a fantasy piece. Coloring on the back seems way off.
https://goldinauctions.com/1927_W560...t-LOT3687.aspx
Signature prob a fake as well. Though certainly not the worse Gehrig fake I've ever seen.