i know nothing about the validity of the clemente card, but there is a nolan ryan card that i have been trying to track down that is from the same year, but has a green border....
edit: however, i'm pretty sure it's a stamp
COMPLETE FAKE:
notice the all caps name font on "AL KALINE":
http://www.ebay.com/itm/1972-Venezue...item3aab11f3d0
then take a look at how clemente's name is spelled on this card: "Roberto Clemente"