Technique includes etching.; Plate No.4.; Stored in folder with PAD7471-PAD7473, PAD7475-PAD7478. See introductory note on PAD7471. While the heads are unidenitified they may be classical Greek figures: Ajax (legendary warrior) , Atalanta (fleet-of-foot huntress, note the greyhound at her feet) and Calliope (muse of epic poetry and song).