The cards in this 407-card set measure approximately 2 5/8" by 3 3/4". The 1952 Topps set is Topps' first truly major set. Card numbers 1 to 80 were issued with red or black backs, both of which are less plentiful than card numbers 81 to 250. In fact, the first series is considered the most difficult with respect to finding perfect condition cards. Card number 48 (Joe Page) and number 49 (Johnny Sain) can be found with each other's write-up on their back. However, many dealers today believe that all cards numbered 1-250 were produced in the same quantities. Card numbers 251 to 310 are somewhat scarce and numbers 311 to 407 are quite scarce. Cards 281-300 were single printed compared to the other cards in the next to last series. Cards 311-313 were double printed on the last high number printing sheet. The key card in the set is Mickey Mantle, number 311, which was Mickey's first of many Topps cards. A minor variation on cards from 311 through 313 is that they exist with the stitching on the number circle in the back pointing right or left. There seems to be no print run difference between the two versions. Card number 307, Frank Campos, can be found in a scarce version with with one red star and one black star next to the words "Topps Baseball" on the back. In the early 1980's, Topps issued a standard-size reprint set of the 52 Topps set. These cards were issued only as a factory set. Five people portrayed in the regular set: Billy Loes (number 20), Dom DiMaggio (number 22), Saul Rogovin (number 159), Solly Hemus (number 196) and Tommy Holmes (number 289) are not in the reprint set. Although rarely seen, salesman sample panels of three cards containing the fronts of regular cards with ad information on the back do exist.