London Brick Company’s manufacturing site at Stewartby in Bedfordshire is located near rich deposits of Britain’s best clay for brickmaking. At the time this film was made, the company produced around seven million bricks per day. Early brick presses applied only two presses to the powdered clay in the moulds, but this was increased to four to achieve stronger bricks. For these ‘four-pressed’ bricks, the trade name ‘Phorpres’ was used.