From the archive record
A wall is constructed to conceal a room underground and show no sign of it from the outside... A sunken courtyard is the location. This method of brick laying is known as Rat trap bond. Rat trap bond is a brick masonry method of wall construction, in which bricks are placed in vertical position instead of conventional horizontal position and thus creating a cavity (hollow space) within the wall. Architect Laurie Baker introduced it in Kerala in the 1970s and used it extensively for its lower construction cost, reduced material requirement and better thermal efficiency than conventional masonry wall, without compromising strength of the wall. Source: www.istudioarchitecture.com/ This footage is part of the professionally-shot broadcast stock footage archive of Wilderness Films India Ltd., t