Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,363 pages of information and 233,518 images on early companies, their products and the people who designed and built them.
of 29 High Street, Bloomsbury, London, WC2. Factory at Cubitt Town, London, E. (1922)
of Cubitt Town, London, E14. Showrooms: 29 High Street, New Oxford Street, London, WC2. Telephone: East 0381. Cables: "Starost, London." (1929)
(incorporated with John G. Murdoch and Co)
1922 Listed Exhibitor - British Industries Fair. "Swan" Toys (Wooden and Soft); Star Baby Carriages; "Swan" Folding Cars. (Stand No. F.37) 
1929 Listed Exhibitor - British Industries Fair. Manufacturers of Baby Carriages for Home and Export Trade. "Swan" Folding Cars, Invalid Carriages, the celebrated "Swan" Toys, including Doll Carriages, Motors, Cycles, Scooters, Engines, Barrows, Desks, Horses, Play-Sets, etc. (Stand No. E.3) 
Possible connection with Sterling Manufacturing Co of similar address.