Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,386 pages of information and 233,857 images on early companies, their products and the people who designed and built them.
of 34 Farringdon Road, London, EC1. Telephone: Clerkenwell 5460. Cables: "Thomdibu, London". (1929)
1920 Company founded.
See also National Band Gramophone Co
1929 Listed Exhibitor - British Industries Fair. Manufacturers of "National Band" Products. "National Band" Gramophones, Motors and Accessories, Banjos, Ukuleles and other Stringed Instruments, String and Accessories, Brass, Gong and Snare Drums, Jazz Outfits, The "National" Jazz Bands, Tubular Bells, Cymbals and all kinds of Percussion Instruments. (Stand No. MM.1). Also Musical Toys and Novelties, Toy Drums, Drum Sticks, Tambourines, etc. (Stand No. C.69). 
1947 Private company.
1949 Company made public.
1961 Manufacturers of record players, acoustic and all-electric gramophones.