I have an Adirondack Big Stick Hank Aaron personal model #50 of 200 apparently signed by Hank Aaron, Frank Robinson, Harmon Killebrew, and two others. How would I go about finding out who the two others are?  Going by what I see online at least the Aaron signature looks good. I haven't checked the others. If authentic what might this be worth?  Would it be worth paying to find out?  It is not in the best condition. It was in a couch I bought at Goodwill to put in a hunting club. So I don't have anything in it.


ETA.  I checked the Killebrew and Robinson signatures online and they might be GTG.

send it in to an authentication place.  Even some of those are subjective so youll want to send it to the best.  Some COA are shit for resale down the road.  Counterfeits WOULD look like the real thing of course so your own eye balling probably isn't worth much if you ever wanted to know the truth or for resale.