Virgin store Mary Medal with Marian Cross on Reverse

This French medal is probably circa early 1900s, but I don't have a definitive age of the piece. It is of store an unknown metal (There is a mark but it is illegible.) and has a dark blue background with a silvery Virgin on one side and silvery Marian Cross on the reverse. I am not certain of what the blue or the pearlized portions are comprised.

The medal measures ½", not including the bale or ring attached to the bale.

Thank you for looking.