The best-preserved figure has been identified as the prophet Amos, in view of the letters "AMO" that appear on the scroll that he is holding. Elsewhere, other surviving fragments bear the names IACOB and IUDITH. It is therefore reasonable to assume that all the embrasures were adorned with figures from the Old Testament. The clear outline of the prophet's face, with his blond hair and oriental headdress, is a clear indication of the mastery of an exceptional artist, a man recruited by the Boldrini family to add further prestige to their residence.