St. John the Evangelist, Alloa

Designed by architect Robert Rowand Anderson, a former student of G.G. Scott, this Scottish Episcopal church near Glasgow was built 1867-69.

The mosaic reredos of The Last Supper is by Salviati.

Sources:
Scottish Churches
Gifford, John and  Franck Arneil Walker. Stirling and Central Scotland. New Haven: Yale University Press, 2002. 26.
The National Churches Trust flickr Photostream
Doors Open Days
Scotland Churches Trust
Barr, Sheldon. Venetian Glass Mosaics: 1860-1917. London: Antique Collectors' Club, 2008. 124.