PD? Topps Billy Cox #232
 

Not something my Father or I did, which is a good thing!
I was looking at my cards and thought, what happened here, how did that dot get on there?
Felt it and it was smooth and not sticky so I decided to look it up.

I assume this ink dot/spot has been discussed before as it is plain to see right between his eyes.
My copy and a PSA one.

Cox was Hindu?