Orestes and Pylades, with hands tied behind their backs, are led by a satellite of the sea king to be purified by the priestess Iphigenes. Her statue is on the table with two vases, and her two ministers attend to the sacred lamp and other sacred instruments. Copperplate engraved by Tommaso Piroli from his own "Antichita di Ercolano" (Antiquities of Herculaneum), Rome, 1789. Italian artist and engraver Piroli (1752-1824) published six volumes between 1789 and 1807 documenting the murals and bronzes found in Heraculaneum and Pompeii.