The Carrara & Matta Copenhagen Range of Chrome Plated Brass Towel Shelves,  Glass Shelves and Swivel Arms:

https://www.replacementtoiletseats.co.uk/ourshop/cat_1219302-Carrara-Matta-Accessories.html

Brass for a solid weight and feel,  high-polish chrome and concealed fittings for timeless style...