TWIN HEARTS OF JESUS AND MARY TEMPERED GLASS SET SIZES 23 X 30 inches each or 46 X 30 inches all 1 SET

The joint devotion to the Hearts of Jesus and Mary formally started in the 17th century. Jean Eudes (1601–1680) established the Society of the Heart of the Mother Most Admirable, which resembled the Third Order of Saint Francis and dedicated the seminary chapels of Caen and Coutances to the Sacred Hearts.Tempered glass is about four times stronger than "ordinary," or annealed, glass. And unlike annealed glass, which can shatter into jagged shards when broken, tempered glass fractures into small, relatively harmless pieces. ... The oven heats the glass to a temperature of more than 600 degrees Celsius.