The case was filled with rare and antique coins.
Authorities say Robinson ran from the building and hopped into a waiting car, driven by 26-year-old Allentown resident Troy Anderson.
Investigators say they traced the vehicle to Anderson's address shortly after the robbery and arrested him. They say they found Robinson hiding underneath a basement stairway with the coins.
Both are charged with one count of felony retail theft and one count of conspiracy to commit retail theft.
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Information from: The Morning Call, http://www.mcall.com