These were used to bend the beam through an angle and cause it to hit the front face of the screen.
On its front face was a thick, day handle.
Notice in the first image that the color on the front faces of the two boxes is exactly the same.
Then place the piece, front face toward you, upside down in the miter box.
Additionally, the needle has a long groove in its front face.
The front face has seven casement windows to the ground floor.
The two entrances to the front face have a pointed arched top.
Four men dug at the front face with picks and mattocks.
These panels are difficult to protect because their front face has to be directly exposed to the sun.
The only access to the interior was through a small barred window low in the front face.