The aesthetic significance of the most relevant Spondylus use in barter (Valdivia Culture 3600 years BC) through the principle of reciprocity: pragmatic and ethical expression of relations between human beings, according to which each instrument is concerned, as a complementary contribution, a reciprocal act. “life spondylus ”, óil on canvas, 70×50 cm. private collection.“spondylus princeps” graphite on cardboard, 80×60 cm. private collection.“Goddess of womanhood “graphite on cardboard, 60×80 cm. private collection.“oracle” marble and fire, 80x70x60 cm.“peace makes love” marble, 50x40x30 cm.