How tough is a 1973 Nicklaus Panini ??
 

Is this his most valuable card?? Thank u in advance.

Nicklaus Cards
 

I don't think the Nicklaus Panini is abundant but there are plenty out there. Values on non-mainstream stuff is hard because of the slow adoption rate by the general collector. The Panini card tripled or quadrupled in value after the first one was graded.

The Panini is not even close to the scarcest Nicklaus card. The Little Caesars cards and the Spanish Aces World of Sport card are a couple of the ones that are much more scarce but very little people know they exist.