The product is an autographed World Teamtennis recreational league program signed by Billie Jean King, a legendary tennis player. The signature is authenticated by Billy Jean King and the program is an original from the United States. This collectible item provides fans with a piece of tennis history and a tangible connection to the sport's most iconic figures. Perfect for tennis enthusiasts or collectors, this autographed program offers a unique and valuable addition to any sports memorabilia collection.