Frederick Sage and Co
From Graces Guide
of 58/62 Grays Inn Road, London, WC1 (1922), shopfitters.
ditto Address. Telephone: Holborn 2662. Cables: "Sage, London". (1929)
Frederick Sage and Co Ltd were shopfitters, at Grays Inn Road from their reconstruction in the 1870s to the destruction of those premises in the Blitz on 17 April 1941. This company was a substantial employer in the area with an international practice, including the design of La Rinascente in Milan.
1876 Won an award at the Centennial Exhibition in Philadelphia of an 'air tight showcases'.
c1900 Fitted out Harrods department store in Knightsbridge, London.
1905 Incorporated as a limited company.
1913 Name changed.
1914 Show Case and Shop Front Fitters at Gray's Inn Road. Directors: Frederick George Sage (chairman); F. Debenham; G. Moody; W. Denny; G. A. Coulson, General Manager.
Specialities: Air tight show-cases, shop front fittings, high class joinery, fittings of all kinds for Banks, Museums and Offices. Also supply metal work, revolving shutters, facias, signs, etc.
WWI-makers of aeroplanes.
1915 Patent granted for hinges for aeroplane wings. The invention was for the wings of aeroplanes, which were staggered, (where the upper plants is in front of or behind the lower), may be folded back to lie alongside the fuselage of the machine. It was necessary to keep the wings above one another in order to allow them to fold, as the hinges were rigidly attached to the main spars of the wings (patent number 15,014).
1916 Set up a aircraft design team where four different aircraft were designed, but a total of only 5 were built.
After the War, company reverted to its business of shopfitting.
1921 Involved with the rebuilding of the Galeries Lafayette in Regent Street.
1922 Listed Exhibitor - British Industries Fair. Manufacturers of Office and Store Furniture and Mirrors in all kinds of Hardwood, French Polished or Enamelled. (Stand No. C.28) 
1929 British Industries Fair Advert as Manufacturers of Jewellers' Sundries, Showcases, Pads etc. Mirrors, Show Stands, Silent Salesmen, etc. Also Store and Office Fitters and Supplier of Office Furniture, etc. (Furniture Section - Stand No. T.43) 
1936 Factory at Peterborough sold to the Aeronautical Corporation of Great Britain
WWII Manufactured parts for the De Havilland Mosquito
1941 April 17th. Main factory and office premises in Gray's Inn Road were bombed and entirely destroyed.
After WWII the company was involved in numerous refurbishment works for shops, ships, churches, musuems, but the longest post-war project was in the Palace of Westminster following the bombing of the House of Commons.
1961 Architectural metal craftsmen and contractors and manufacturers of shop and store fittings shop front and showcases.
1968 Frederick Sage and Co became a subsidiary of British Electric Traction.
1989 Merged with Brent Metal and moved to Wembley. After a few more years it became part of Courtenay Pope Holdings before its demise.
Sources of Information
-  wikipedia
- 1914 Who's Who In Business
- The Engineer 1919/01/24
- 1922 British Industries Fair Page 69
- 1922 Who's Who In Engineering: Company S
- 1929 British Industries Fair Advert 58; and p147
- The Engineer 1949/10/14
- The Engineer 1951/04/27
- The Engineer 1953/12/04
-  Gray's Inn Road - Information
- Aeroplanes of the Royal Flying Corps (Military Wing) by J. M. Bruce. Published 1982 ISBN 0-370-30084-x
- Mosquito by C. Martin Sharp and Michael J. F. Bowyer. Published by Crecy Books in 1995. ISBN 0-947554-41-6