"Mastro Auctions is proud to inform you that author  and noted collector Stephen Wong will be signing his best-selling book "Smithsonian Baseball: Inside the World's Finest Private Collections." This book gives an in-depth-behind-the-doors look at some of the game's greatest artifacts that reside in the world's finest private baseball collections.  Wong, who serves as Senior Curatorial Advisor of the Sports Museum of America has worked on the museum's prized baseball collection, providing items from his personal collection and securing artifacts and memorabilia that are on display in the baseball gallery. •Book purchase required for signature.  Proceeds to benefit The Harlem Children's Zone and the New Theatre.  The SmA Store is open to the public.  Save $5 on admission to the  museum with purchase of book.