Thanks go out to The Smilies for permission to add further caches to the Post Haste series. Lamp boxes are the smallest of the post boxes used in the UK. Their name derives from the fact that they were designed to be affixed to lamp posts, although they may equally be found embedded in walls or mounted on poles.
Lamp 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.