It was found in 1862 at the Theatre of Dionysos. The lowest left corner is missing.

On the concave plaque surface a young woman in a vivacious dancing posture is depicted. She moves to the left tilting her head. Her rich hair is adorned with a stephane or band. With her hands she holds in place her himation that covers her head, creating bountiful folds, and shrouds her body billowing. The figure may be one of the Horae (Hours) although her identification remains uncertain.

This plaque together with another slab (ΕΑΜ 259) possibly overlaid the triangular tripod base of a choragic monument. Their subjects were inspired by earlier works of the 4th century BC.