"19th Century Onyx Column"
Onyx column in different shades of yellow and white from the end of the 19th century. Capital and base in bronze with eggs and pearls (wear to the gilding). The top is rotating, note an old restoration at the base, two marble plinths imitating onyx. (see photos) Circa 1880. H 112 XL 30 XP 30 cm barrel diameter 12 cm https://rennes-antiquites.com/produit/colonne-en-onyx-de-la-fin-du-xixeme-siecle/ 
Le Magazine de PROANTIC
TRÉSORS Magazine
Rivista Artiquariato