Knives and hats of Sástago Historical milestone · Sástago, Ribera Baja del Ebro, Zaragoza Image of Sástago, not of the place itself. Sástago developed two trades of its own: cutlery, with knives of characteristic crosspiece and mother-of-pearl handles, and hat making. Both activities sustained the villa until the beginning of the twentieth century, when hydroelectric generation arrived. siglos XIX-XX Photo: Juan Emilio Prades Bel (CC BY 4.0) What to see and do in Sástago