Massimiliano Beltrame mosaic nautilus shell sculpture, a contemporary art object with the shell form and mosaic-over-sculpted-base construction identified in the photos.
It is a nautilus shell form with hand-laid mosaic tesserae in black, white, gray, red, gold, and green - some semi-precious.
Mosaic signature along the side.
Very good overall. Light surface wear/scuffs and dust from handling/display, with no obvious chips or missing tiles.
