Caption:
Ancient musical instruments: metal lyre or Cithara 1, metal Trigono 2, and metal lyre in the Portici Museum 3, Timpano tambourine with bells 4, percussion ring used by the Bacchantes 5, horn from the Palazzo Pal 6 and horn from the Mazarini courtyard 7. Copperplate engraving by Pietro Ruga after an illustration by Lorenzo Rocceggiani from his own 100 Plates of Costumes Religious, Civil and Military of the Ancient Egyptians, Etruscans, Greeks and Romans, Franzetti, Rome, 1802.