Keywords: MID19473, SMID20371, Heros equitans (vol. VI) 377, votive relief, relief, marble, -400/-300, unknown, Greece, Serres, Musée Archéologique, λ 3, altar, snake, phiale, phiale mesomphalos, patera, kline, bed, diphros, heroisation, horse, hero, woman, youth, Heros equitans