Sinewy men carry the tools they use to excavate the mud from which bricks are made.

Brick making in Bangladesh's estimated 6,000 authorised brickfields is still carried out according to a system that is some 150 years old.
The production process begins with workers hacking mud from the earth with picks and shovels. From the moment it is excavated the sun begins to dry it out so water must be constantly mixed in to keep it workable.