New York Yankees MLB Authenticated Old Yankee Stadium Issued Slatted Seatback - 21" x 15" (MLB Auth). This authentic slatted seatback, measuring 21" x 15", was issued from the legendary Old Yankee Stadium and comes officially authenticated by MLB. A rare piece of baseball history, it provides a unique connection to the iconic ballpark and countless memorable moments. Ideal for Yankees fans and collectors seeking genuine memorabilia from one of the sport's most historic venues.