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When a mason of the Past Master degree finds himself in need, he sends his medal to a brother of this degree, asking him for help. If the brother who receives the medal keeps it while sending the requested help, it is proof that upon withdrawing it, the metals referring to money or material support that he lent you must be returned. If, on the contrary, he returns the medal along with the request that was made to him, then it is a gift that he is making.
This is analogous to what Salomon did during the construction of the Temple of Jerusalem. Salomon found himself in need of wood, oil, and wheat; he addressed Hiram, King of Tyre, by sending him his medal until he could fulfill the loan he was making. But the brave King of Tyre returned his medal and the object of his request, sending word that he was only too happy to be able to contribute to an edifice that was for the Lord God Almighty.
An inverted triangle, with the apex pointing down, contains seven horizontal parallel lines of decreasing width. Each line has a small circular mark or point at its center, forming a vertical axis through the middle of the triangle.