The building underwent a major restoration in 1868-76 by G.G. Scott, leading to its current high Victorian look.
A Salviati mosaic of The Last Supper from 1876 designed by J.R. Clayton decorates the high altar.
British Listed Buildings
Colin Sabin's flickr Photostream
“The New Mosaic Reredos in Chester Cathedral.” The Art Journal (1875-1887) 2 (1876): 351.