Cottier, Daniel / Cottier &Co.
Daniel Cottier (1838-1891) had a varied training, including sometime in London, where he was directly influenced by the Pre-Raphaelite Brotherhood, before returning to Scotland, joining Field & Allen in Edinburgh in 1862. There he built up the stained glass business as foreman designer, before opening his own studio in 1864-65.
Cottier was prolific in many fields of the arts including furniture design and art dealing, along with stained glass. He spread his wings beyond Scotland opening offices in London, New York and Sydney, and is credited with introducing the Aesthetic Movement to America and Australia.
Sources:
200 Scottish stained glass artists by Rona H Moody in The Journal of Stained Glass Scotland Issue Volume XXX (2006)
Daniel Cottier: Designer, Decorator, Dealer by Petra ten-Doesschate Chu, Max Donnelly, Andrew Montana, Suzanne Veldink (Paul Mellon Centre for Studies in British Art, 2021)
