First minted in 1832, this is whats known as the 'Miraculous Medal'. The Miraculous Medal  is a revered Catholic devotional item, originating from a series of apparitions experienced by Saint Catherine Labouré in Paris in 1830. During these visions, the Virgin Mary appeared to Catherine, instructing her to create a medal that would serve as a source of grace for those who wear it with faith. The front of the medal features Mary standing on a globe, crushing a serpent under her feet, with rays of light emanating from her hands. Encircling her image is the inscription: "O Mary, conceived without sin, pray for us who have recourse to thee." The reverse side of the medal depicts an "M" intertwined with a cross, accompanied by the Sacred Heart of Jesus and the Immaculate Heart of Mary, surrounded by twelve stars.