The Metropolitan Museum of Art 464179 portrait 1325–50 CC0 met sacred-art portraits objects-with-gravity sacred art objects with gravity ivory polyptych madonna child saints gothic religious art sculpture medieval italian pale cream ornate detailed religious figurative triptych the coronation virgin 1325–50 German Elephant ivory with polychromy, gilded decoration, and metal mounts Ivories-Elephant Religious Sacred & Devotional Faces in Time Objects with Gravity