Julia May 30, 2011 Charles the Bald, gemstones, Louvre Museum, Serpentine Dish of Serpentine, Pearls, Gold and Gems Julia May 30, 2011 Charles the Bald, gemstones, Louvre Museum, Serpentine Dish of serpentine inlaid with gold fish, pearls and gemstones, 1st century BCE, with 9th century mounts from the Court of Charles the Bald, purchased in 1793 by the Louvre Museum.