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WASHINGTON (WUSA9) -- In last week's Inside Pitch, we took you inside a home in Potomac, Maryland because the homeowner may have the largest known collection of Nationals memorabilia. Now, we're exploring more of the collection.

A potomac, Md. homeowner may have the largest known collection of Nationals memorabilia. Holden Kushner takes a closer look at the collection.

We saw the Bryce Harper game used baseball, the misspelled Jordan Zimmerman bat during his first ever time at plate and Brian Schneider's chest protector that he wore when Barry Bonds passed Hank Aaron to become the all-time homerun king. There's more: Andrew Lang owns the jersey Ryan Zimmerman wore when he hit his walk-off homerun in the inaugural game at Nationals Park.

See more of Lang's collection in the video.

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