Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 126,749 pages of information and 199,760 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).