He stepped slowly out to the mortar box as he spoke, and picked up the parcel.

The material from the iron mortar boxes was washed out onto a screen and the oversize returned to the stamps.

So, as he passed a building where a house front was being converted into a low-windowed shop face, he dropped the paper package into an abandoned mortar box.

Set the box on a flat surface, like a sturdy wheelbarrow, a mortar box (a large metal tray with sides, which can be rented) or a flat area of ground covered with plastic sheeting.

His cell was the whole of his world, a room twenty feet square, high within the black granite tower, a stone-and- mortar box with a single metal door that never opened, a window closed off by metal shutters, a sleeping mat, a wooden bench, and a small table with two chairs.