NYMag has the breaking news that the 15th century terra-cotta relief of Saint Michael the Archangel by Andrea della Robbia has taken a fall off the wall at the Met, from the same spot it has hung on metal mounts for twelve years (though the museum acquired it in 1960). The time of the tumble is uncertain, but occurred sometime overnight, and the curators have been assessing the damage today. While the sculpture is not......