Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,153 pages of information and 233,681 images on early companies, their products and the people who designed and built them.
Greenwood's and Airvac Ventilating Co Ltd. Designers and Manufacturers of Ventilating Equipment for Buildings, Vehicles and Vessels of Beacon House, Kingsway, London. (1952).