Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 137,253 pages of information and 220,095 images on early companies, their products and the people who designed and built them.
of Trinity Works, Sheffield. London Showrooms at 62 Holborn Viaduct, London, EC1. (1922)
Ditto Address. Telephone: Central 6976. Cables: "Butler, Sheffield". (1929)
1681 The "Key" trademark was registered.
1768 The "Butler" trademark was registered by the Cutlers Company.
1914 Manufacturers of cutlery and electro-plate. Specialities: "Cavendish" cutlery and electro-plate, cabinets and cases of cutlery and plate, presentation outfits, prizes for sports, spoons and forks, fish and dessert sets, wedding and Christmas presents etc.
1922 British Industries Fair Advert for Famous Sheffield Cutlery to suit all markets. "Cavendish" Cutlery and Plate. Butler's "Keen" Razors. Spoons and Forks. Fish and Dessert Sets. "Non-Stain" Cutlery. Cabinets and Cases of Cutlery and Plate for presentation etc. (Stand No. E3) 
1929 British Industries Fair Advert for 'World Famous Sheffield Cutlery and Silver Plate'. "Cavendish" Brand, "Non-Stain" Table Cutlery, Forks, Spoons, Pocket, Sporting Knives, Scissors, Cases, "Keen" Razors, Safety Razors, Blades, Butcher's, Cook's Knives, Fish and Desserts, Cases, Canteens. (Cutlery Section - Stand No. J.52) 
By 1980s was part of Crown House Group.