Lamp boxes are the smallest of the post boxes used by the Royal Mail in the UK, Commonwealth of Nations as well as in Ireland. They are called lamp boxes because 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.

During George V’s long reign many thousands of wall boxes were installed by a number of different foundries. Of note are the free-standing wall boxes of Size A for use on the street and the introduction of boxes with rear-opening doors, designated Types D, E and F respectively, for use in sub-post offices.

The post box at Castle Road has a rounded top and are known as "Hovis" boxes, after the famous loaves of bread. This particular type appears to be an LB210W - short door design cast by W.T. Allen & Co. Ltd. of London.

THE ROYAL GIBRALTAR POST OFFICE

The first organised postal service in Gibraltar dates from 1749, when Governor of Gibraltar Sir Humphrey Bland appointed a Civil Secretary and entrusted him with responsibility for the posts. There was then no regular mail service by sea between Gibraltar and the United Kingdom. Letters were carried by ships whenever possible because the overland route was more precarious, as the roads were unsafe.

In 1806, the British Post Office appointed a Packet Agent for Gibraltar and commenced a regular monthly Packet Service to Gibraltar from Falmouth on contract mail boats, which were known as Packets. Prior to 1830, they were sailing vessels. Steam then supplanted sail. The Civil Secretary continued to run the Overland Post Office.

This led to confusion as there were two post offices in Gibraltar, in separate places, one handling only maritime mail, mainly carried by the official mail packets; the other handling overland mail.

On the 1^st January 1857 the Packet Agency and the Overland Post Office were amalgamated to form the Gibraltar Post Office. The entire postal service in Gibraltar then came under the control of the Postmaster General in London.

A new Post Office was then built. It is still in use today as the General Post Office. The last Gibraltar Packet Agent, Edmund Creswell, was eventually appointed a Deputy Postmaster-General and Surveyor of the Mediterranean. He was based in Gibraltar.

It was in Creswell’s time that the first postage stamps were introduced in Gibraltar. Overprinted British stamps were first sold in Gibraltar on the 3^rd September 1857. They prepaid letters to all countries except Spain, for which letters had to be prepaid in Spanish stamps in order to benefit from lower postal rates, a matter of importance to the poorer classes at the time.

The local delivery of mail was then introduced on the 1^st October 1858. Prior to this, all mail had to be collected from the Post Office. It was then decided to introduce pillar boxes. Three were originally ordered.

One was positioned in Governor's Parade (where there is still an Edward VII pillar box today). The other two were intended primarily for the military garrison and located near the Guard House on New Mole Parade and on Europa Road close to the junction with Windmill Hill. The pillar boxes came into use on 22^nd December 1858 but none of the original three survive.

In 2005, the Gibraltar Post Office was granted the title of “Royal” by Her Majesty Queen Elizabeth II. Gibraltar is the only Commonwealth or British Overseas Territory Post Office outside the United Kingdom to be honoured with this title.