Rosette-patterned transfer Mintons tile in blue, gold, and cream. There is a rounded cutout at one corner as if to accomodate some kind of fixture. On reverse: Mintons China Works, Stoke on Trent.
Russian Decorative Ornament Carvings and by PaperPopinjay on Etsy
Ornate gilded borders vector
G and W Audsley 1882 Adaptations of 13th century stone carvings from laon cathedral, prodced by G and W Audsley in 1882. The Design Decoration Craft article relating to this illustration can be found here