Antique large half nautilus on wooden base cabinet of curiosities

Genuine half nautilus shell mounted on an ebony base and brass pieces. Ideal for cabinet of curiosities, collection or contemporary decoration, sea and nature. It is an old nautilus, some missing parts visible on the last two photos, but does not detract from the beauty of the piece. Total height: 31 cm Nautilus height: 17.5 cm Shell width at the widest point: 14.5 cm Thickness: 5 cm Ebony base width: 5 cm Weight: 250 grams This nautilus is old, it comes from a private collection before 1970, I specify this because now these shells are and must be protected to preserve them.