Lamp boxes are the smallest of the post boxes used by the Royal Mail in the UK, by its counterparts in the Commonwealth of Nations and also by An Post in Ireland. Their name derives from the fact that
A George V lamp box at Tal-y-llyn, Wales, with a bi-lingual collection plate
An Post lamp box in Ireland, attached to a telegraph post. British examples in Ireland also exist but have been painted green.
Lamp box mounted next to a sewer gas destructor lamp in Crookes, Sheffield, England.
A green lamp box at Clumber Park, Nottinghamshire, England. This box was painted green at the request of the National Trust
A pillar box is a type of free-standing post box. They are found in the United Kingdom and its associated Crown Dependencies and British Overseas Territories, and, less commonly, in several members of
Lamp box
…boxes were introduced on an experimental basis in September 1896, being used in parts of London as an inexpensive means of supplementing the existing Pillar box network. By July 1897 these boxes had proved successful and from then on their use spread to rural areas where the greater expense of a Ludlow style…
A Queen Elizabeth II Type A pillar box in Birkenhead
Cast iron cap of a PB42/1 sits atop the box and is secured by bolts
This rare Edward VIII pillar box door shows the built-in posting aperture, collection plate and the royal cypher at Colne Valley Postal History Museum, Halstead, Essex
A line of 5 Red pillar boxes under a large "Post Office" sign, showing the black carcasses and how they extend below ground level