Synopsis: On December 24th 1443 Filippo Dardi received a letter from Lodovico Caccialupi and Simone Manfredi on behalf of the Otto dell'Avere, amending the terms of an offer first proposed to the fencing master by a certain citizen; sometime prior to this correspondence. For centuries this letter has been used to delineate certain biographical details about Dardi’s life; eg. the statement,