Split pearl nautilus mounted in deep shadow box frames being accented by a zebra urchin with spines. This is mounted in a custom made float frame which has glass in the front and back. The shell is mounted and aligned to the back glass panel with a small dab of "Gorilla" gel adhesive. You can build your own using unfinished picture frame stock with sufficient depth to enclose the shell and add an inside railing for the back glass panel. The glass needs to be custom cut and the frame finished to taste.