On the fourth day of the fourth month of 2003 Sammy entered the elite “500 Home Run Club” with a screaming line drive off of Scott Sullivan in Cincinnati. Offered is one of the few OML (Selig) baseballs used during play that evening. On its sweet spot Sammy has left his blue ink signature (8/10) and inscribed on the opposite panel, “Game Used 4-4-03”. Complete with the “Sosa 21” authenticating sticker and Sammy’s signed LOA.