Oinochoe?
Fragment. Interior without slip. Exterior shows a young male riding a large horse to the right. He appears to hold the reins with both hands and wears a chitoniskos (short tunic) but is barefoot. His head is bent down. Only the lower part of the horse's neck, his belly and hind haunches are preserved. A second horse appears to be overtaking the first rider. Only the muzzle and forehooves survive. Some details incised. Red and white painted decoration.
Images courtesy of The Metropolitan Museum of Art (CC0)