Johann G. M

German enamel painter of the late 1600s, working in vitreous enamel on metal, think of tiny, durable paintings made to last. His “Behind-Glass Painting with Calligraphed Saying: The Blood of Jesus Christ the Son of God Purifies us from all Sin” (1678) blends bright color with handwritten script on a curved copper plaque. It was made to hang in homes or churches, its message clear and cleanable. Tap his work to see the enamel glow next to the glass.