500 Home Run Hitters
 

I am new at this and appreciate your help and guidance. I checked it out and it is mounted on a marble base the actual plate is about 12" x 12" and appears to be a metal etched plate with each player signing vertically on the right leg. In addition to the players I mentioned it has Mike S and Reggie Jackson. It was purchased about 10 years ago from a dealer in Florida. I will check further for LOA and other details Thanks again

"Purchased about 10 years ago from a dealer in Florida"

That's a really, really bad sign. Both the timeline and geography are further indicative that this item is likely a forgery. Florida is where most of the fake 500 Home Run Club material originated from. Most of it was produced 10-15 years ago, too. Really not looking good.

500 Hoe Run Hitter
 

I loooked at this more closely and it is a print with a Ray Lewis signature in the lower right corner it has 11 members of the 500 Home Run Club