Fragment of the Parthenon Frieze, North, N XXI, head of a horse, ACR 1130 ... Alison Frantz ... Full frontal See Brommer, 1977, taf. 79. N XXVI, see Jenkins, 1994 Picture number assigned 2000 ... January 24 1958 ... Fragment of the Parthenon Frieze, North, N XXI, head of a horse, ACR 1130