An invention by John Lambert distributes mortar along a wall enabling bricks to be laid quickly.
M/S of men building a wall. C/U as they put on the mortar and bricks. M/S as John Lambert hands them his invention which is a small bottomless box with handles and two slots. M/S as it is placed on wall and mortar dropped into the two slots, then it is eased along distributing the mortar along the wall. Various shots as builders follow on laying and trimming the bricks.