The fully staffed Mobile Post Office will be inspected by the camera both outside and inside.
Introduced by Cecil Lewis.

A post office on wheels is one of the latest innovations. It travels to race meetings, exhibitions, and other shows that are held only at certain times. The public have all the usual facilities - stamps can be bought, phone calls made, and telegrams sent. As viewers will see, the mobile post office is built upon a large trailer chassis and hauled by a tractor. The vehicle is divided into three compartments. There are two telephone call-boxes in the rear, in the centre is the office proper, while the front is a store room.