Proudly offered is one of the single finest post-war baseball cards in existence, a 1956 Topps second-year Sandy Koufax example graded PSA 10 GEM MINT. Needle points for corners join strong edges around an immaculate image that microscopically favors the left border, well within PSA's stated parameters for the grade of GEM MINT. The left edge, from corner to corner, shows some mild traces of rough-cutting, but except for the hardly perceptible centering preference for said edge, every other facet appears essentially perfect. The registration of both images, Sandy's portrait as well as his in-action shot, is precise, and there are absolutely no traces of unusually extraneous print whatsoever. The colors are pleasantly bold and thoroughly saturated throughout, while the entire surface exudes an adequate coating of gloss, which is somewhat of an anomaly for an oftentimes dull and lackluster issue. The reverse, on the other hand, appears even more perfect than the front, with bold and perfectly saturated red, black, and green ink, near perfect centering, and a nearly immaculate surface throughout. A shimmering example of a monumental card offered in head-spinning, jaw-dropping, unheard of GEM MINT 10 condition. Incredibly, PSA has reviewed well over 150,000 submissions from the 1956 Topps set and ordained just 70 examples with the GEM MINT crown; that's 7 examples for every 15,000 candidates, or less than 5 one-hundredths of a percentage point. One other Koufax can be counted among those 70 shimmering GEM MINT stars of the '56 set, just like PSA reports 2 examples of Sandy's 1955 Topps rookie in the GEM MINT 10 tier, but, at this rate, the likelihood of any additional GEMS surfacing is highly unlikely, indeed, next to impossible.