Antique Madonna in Brass and Enamel Frame Russian Icon outlet Style 4 inches by 3 1/8 inches Christian Catholic Mary and Jesus Religious

I'm not sure of the exact age of this lovely little piece. A beautiful Madonna and child inside a heaven brass frame, measuring 4 inches by 3 1/8 inches. I'm not sure if this is a painting on board of if it's on paper and lacquered to the board, but its overall presentation is quite lovely and would be a nice addition to collection.