Amulet of the type known as a 'magical gem', showing Ibis striding to left, with wings tied to an altar with a cord, the altar is crowned with three stalks of a plant. Above it there is a star, on the right and left: S-shaped lines (snakes). Scholars interpreted the design of the ibis with snakes, common in these gems to be linked with the use of the stone to cure digestive problems. Often these gems have the inscription πέσσε meaning digest on the reverse side of the stone but M12597 has it above the ibis. The reverse side has three Sd joined in the middle by a horinzontal line which ends up in one end in a spiral.