Rare Josh Gibson Autograph Help....Real?
 

I just recently came across this cut signature autograph of Josh Gibson.....Looks pretty good from the few exemplars that I have seen but cannot be sure. Thought I would bring it here to get opinions before taking it to JSA at the national. Any help and educated opinions would be greatly appreciated....Thanks...Bryan

any story / detail / context behind it?

None whatsoever, I found it in an old box with Kiki Cuyler, Connie Mack auto programs...

The Russian stamps from the 1880s is a cool, unexpected twist.

Maybe some dude was sitting in the stands of a Negro League baseball game tending to his stamp collection, when the opportunity arose to stick the back of an album page in front of Gibson. Or maybe Gibson himself collected late 17th century Russian stamps.

Maybe it's me, but kinda looks like a faded/worn out sharpie? Again I could be wrong.