Two of the most rare Topps cards were the Joe Page and Johnny Sain biography variations with the 1952 Topps set. Situated one card from each other in the tough first series of cards (Page with card #48 and Sain with card #49), each pitcher was a vital arm for the New York Yankees in 1951. Topps reversed their biographies on a small amount of black back varieties, and the fact both are Yankees in the tough black back first series, makes these cards extremely rare and in high demand. Each card has been graded by PSA, with the #48 Joe Page (Sain bio) graded PSA EX 5 and #49 Johnny Sain (Page bio) graded PSA VG-EX 4.