A baseball card is a small trading card usually printed on some type of paper stock. A card will usually feature one or more
baseball players or related sports figures (eg...The San Diego Chicken). The front of the card typically displays identifying
information for and an image of the player(s). While most modern cards display statistics on the rear, many early cards displayed
advertisements. These advertisements were often the basis for their classification in Jefferson Burdick's 'The American Card
Catalogue'. There are no distinct rules that limit the size of a baseball cards; however, most cards of today are 2-½ inches
by 3-½ inches.