A Pennsylvania museum has corrected an exhibit after an eagle-eyed teenager pointed out an inaccuracy about a radio that Chicago mobster Al Capone used.

FOX's Tonya J. Powers has the story:

The Eastern State Penitentiary in Pennsylvania has been called out by a 13-year-old.

Joey Warchal was taking a tour of gangster Al Capone's former cell at the prison, which is now a museum, when he noticed the radio in it was wrong. Capone spent time at Eastern State in 1929 and 1930. The radio in the cell was made in 1942.

Not only did the seventh-grader, who happens to collect antique radios, notice the inaccuracy, he took care of the problem. He found a Philco Lowboy 64 from 1929 online for $300 dollar and gave it to the penitentiary.

The museum has given him the 1940's radio in the cell as a token of appreciation.

Tonya J. Powers, FOX News.

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