Sterling Silver Plastic Bubble Charm - Religious Praying Hands

Dating to the 1950s or so may I offer this sterling silver (tested for silver content, NO HALLMARKS) rimmed bubble charm holding the image of a set of hands in prayer against a background of slate blue. At the back, the motto "Extended Hands in Prayer for Peace." Without the bale and jump ring, the charm is 9/16" wide/high. Weight is 1.4 grams. Condition is very nice though the silver rim does need a polish - it still has a lot of tarnish.