Sparkand Bell - Arc Wall Sconce or ceiling light.
The Arc makes a bold statement at eye level, but can also be used as a ceiling light.
Disc is 200mm diameter.
Link https://www.etsy.com/listing/461486482/arc-brass-wall-sconce-or-ceiling-light?ref=related-3 
https://www.etsy.com/listing/607265840/walnut-arc-wall-sconce-or-ceiling-light?ref=shop_home_active_53