These 2-1/4" x 3-1/4" cards are not the bigger "Super" cards which would be seen in the following years. Rather, what enabled Topps to dub them "Super baseball Cards" is their high-gloss finish which enhances the bright color photograph used on their fronts. The only other design element on the front is a facsimile autograph. The backs contain a box at the bottom which carries the player's name, team, position, a copyright line and the card number. Another unusual feature is that the cards have rounded corners, although square-cornered proof cards are also known, completely printed on front and back. - 2006 Standard Catalog of Baseball Cards, 15th Edition.