I have two. As a variation collector I am always looking for print anomalies. I have a normal copy as well as a variation with a faint red print line above Grant's head in the border which has the characteristics of a cut line. I do not believe that it is, however, because the line is dashed not solid, and cut lines are typically black on white bordered designs. Also, it is not found on a consistent amount of copies for this explanation to be warranted. Copies with the red line are much more scarce, at approximately a 50:1 clip and every copy I've seen with the red lines have them in the same location every time.
Here's a sold one on ebay:
https://www.ebay.com/itm/1966-Topps-...p2047675.l2557
Here's another:
https://www.ebay.com/itm/1966-Topps-...p2047675.l2557