On the wall of the reception room in Firestone Library's Department of Rare Books and Special Collections (RBSC) hangs an unassuming white frame. The structure contains a display of 18 coins dating to the 11th century Byzantine Empire.
No one is sure why the Byzantines chose to use cup-shaped coins for the 300 years the empire occupied Eastern Europe. But scholars of numismatics — the study and collection of coins, paper money and other currencies — are the ones to turn to for possible theories and explanations. . . .
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