Spalding Baseball: Official Ball for Major League Games since 1957
The 1957 Spalding Sporting Goods Baseball ad highlights the company's longstanding role in Major League Baseball, emphasizing that Spalding has been the official baseball manufacturer since the establishment of the National League in 1876 and the American League in 1900. The ad showcases two specific types of baseballs: the Official National League Ball, signed by National League President Warren Giles, and the Official American League Ball, signed by American League President William Harridge. It asserts that Spalding baseballs have been used in every World Series and All-Star game, reflecting the brand's prominence in both regular season and postseason play. The advertisement concludes with the statement that all major league games will use a baseball made by Spalding, underscoring the company’s exclusive connection to the sport during that period.