Comments: Furtwängler probably confused the Calandrelli copy of the Boncompagni collection, now in Boston, Museum of Fine Arts, coll. Warren, inv. 10.174, with the original when he believed it to be from the Poniatowski collection (Furtwaengler, A.: Die antiken Gemmen (1900): 112, pl.23.4 'ex Poniatowski collection'). It is more likely that Calandrelli's design for Poniatowski was an original composition, as the drawing suggests, and not a copy of the Boncompagni intaglio.
