A common maxim in the high-end graded baseball card game is that Hall of Famers are routinely more rigorously evaluated in order to preserve the perfect supply and demand picture of their population reports. Such certainly appears to be the case with the offered example of Brooks Robinson's 1963 Fleer issue. The one and only entry in the GEM MINT 10 column from PSA, the presented specimen boasts a sharpness and cleanliness appropriate for an even higher grade, were such a thing possible. 1 of just 66 examples graded GEM MINT 10 from nearly 20,000 submissions from this classic 66-card set! No wonder it's a Pop 1!