The 1977 Kellogg's #26 Mark Fidrych is a fascinating card because, unlike his standard Topps rookie, these 3D cards were prone to "cracking" or "curling" due to the plastic lenticular coating. Finding one in a PSA 10 (Gem Mint) grade is incredibly rare.

A PSA 10 Fidrych has historically commanded a 4x to 6x premium over a PSA 9 (~$100).

Shipping cost is a flat $5. No returns as grade authentication guarenteed by psa.

Please ask any question before bidding. Good luck!