Vintage Sterling Silver Mother of Pearl Carved Madonna Religious Catholic Charm Marcasite ETC8930

This is a vintage Catholic Religious Christian sterling silver charm/pendant. The Madonna has her head bowed and hands clasped in prayer with several around her on their knees in prayer. I cannot make out the letters in the mother of pearl. The charm is 11mm wide x 5/8" long. The silver is set with tiny marcasite stones in the corners around the mop center. Total weight is 0.2 grams.
This is a vintage, previously owned charm. Therefore, light wear can be expected. There is no visible damage.