Polo Grounds 1911 Commemorative Stadium Pin. Officially licensed product. Usually ships same business day.
Walter O'Malley : Biography : Reference Biography
June 28, 1911: Mathewson shuts out Boston in Giants' first game at
Uncle Mike's Musings: A Yankees Blog and More: October 5, 1918
Sports, Baseball, New York City, Polo Grounds, Antique Print, 1912
Uncle Mike's Musings: A Yankees Blog and More: How to Go to a
New York Giants Polo Grounds 1911 Commemorative Stadium Pin
New York Giants Polo Grounds 1911 Commemorative Stadium Pin
New York Giants Polo Grounds 1911 Commemorative Stadium Pin