Vintage Double-sided outlet Enamel Miraculous Mary Medal/Disc, Greek? Hand-Painted

A beautiful hand-painted enamel medal/disc with Miraculous Mary on one side and Mary and Jesus on the other. Appears to have Greek letters, but I'm unsure. Would look great turned into a necklace.

Unknown maker.
Condition: VERY GOOD. No loss to enamel.

Thanks for looking!

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