Tella Co
of Tella House, Devonshire Street, Queen Square, London, WC1. Telephone: Museum 3708-3709. (1922 and 1929)
of Tella House, Boswell Street, Queen Square, London, WC1. Telephone: Holborn 3708-9. (1947)
- 1922 Listed Exhibitor - British Industries Fair. Producers of Commercial Photography in all branches; Expert Photographers. Photographs dispatched anywhere at a moment's notice; Artists and Blockmakers. (Stand No. K.131) [1]
- 1929 Listed Exhibitor - British Industries Fair. Photographers. Producers of photographs for sales service, photographic printing, half-tone line and colour blocks, catalogues, leaflets, display cabinets, photographic transparencies and illuminators, and lantern slides. (Stand No. M.45) [2]
- 1947 Listed Exhibitor - British Industries Fair. Photographers. Photo-Printers, Catalogue Illustrators. All kinds of Illustrated Publicity. Super Speed Photography - Faster Than The Eye. Printers and Photographs in Mass. (Olympia, Ground Floor, Stand No. D.1644) [3]