Keely, Pat (Undefined) Loxley Brothers Ltd, London and Sheffield (printer) Ministry of Labour and National Service (publisher/sponsor) Royal Society For The Prevention Of Accidents (publisher/sponsor)
Unknown (Undefined) Jordison and Co Ltd, London and Middlesbrough (printer) Royal Air Force (publisher/sponsor) Her Majesty's Stationery Office (publisher/sponsor)
Holmes (Undefined) Waterlow and Sons Ltd, London EC2, Dunstable and Watford (printer) Royal Air Force (publisher/sponsor) Her Majesty's Stationery Office (publisher/sponsor)
Foss, Jonathan (Undefined) J Weiner Ltd, 71/5 New Oxford Street, London WC1 (printer) Air Ministry (publisher/sponsor) Her Majesty's Stationery Office (publisher/sponsor)
Unknown (Undefined) J Weiner Ltd, 71/5 New Oxford Street, London WC1 (printer) Air Ministry (publisher/sponsor) Royal Air Force (publisher/sponsor) Her Majesty's Stationery Office (publisher/sponsor)