The medal depicting the Blessed Virgin Mary as the Mediatrix of All Grace, crushing the serpent and standing on top of the world, Rays of light, symbolizing grace, stream down on the globe from Marys hands. A ring surrounding the Virgins head is inscribed with the words:O Mary, conceived without sin, pray for us who have recourse to theeâ. Tin is the fourth precious metal arranged behind platinum, gold, and silver. It is three times the value of copper, Tin can preserve its forever luster! Tin is very suitable for contact with the human body, It is the best jewelry material after gold and silverItem Details