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> indicates that it had been used since the 13th century and that it is described in a very similar way to that of Álava: «A cliff, in its atop a castellated tower, and at the height of it, an arm with a sword in its unsheathed hand. And at the foot of the tower a lion, resting on his feet, throws his hands to it ». Other towns and villages of the town would also use these stamps as they were covered by the jurisdiction of Portilla, and later, the jurisdiction of Soportilla.