The 1956 Topps issue is one of the most popular of the era, and the last of the larger-format card issues before Topps adopted the size now considered to be standard with its 1957 issue. This Gray Back version of the #135 Mickey Mantle  card from the set is one of the keys to the issue and certainly in high demand. 

This example features Mickey's boyish smile in the foreground, and an action shot of him making a leaping catch over the outfield fence in the background. Centering is just ever so slightly west on the horizontal canvas. Corners are nice, but some light edge chipping and faint staining around the borders explain the card's technical grade. Brilliant colors and illustrations on both sides give this card tremendous eye appeal.