Near to Windsor castle, situated next to a more usual red pillar box is a blue George V pillar box. The blue pillar box displays the history of ’special’ blue pillar boxes:

On 9th September 1911, Gustav Hamel took of from Hendon Aerodrome to inaugurate the first United Kingdom aerial post and landed in Shaw Farm meadow, Long Walk, Windsor.

The flight was organised to carry special mail celebrating the coronation of King George V.

Within a few years, Air mail services became well established and between 1930 and 1938, special blue pillar boxes were used for posting Air Letters.

This box is adjacent to the site of Windsor Post Office (1887 – 1966) where Air Mail was received from the United Kingdom aerial post.

Next to the two pillar boxes is a historic stamp vending machine.

The first maps of Durham show a surprising direction for Durham City’s first Great North Road. Published in 1598 and 1610, they suggest that South Street was a major route and the strip map in ‘Britannia Depicta’ of 1720 confirms its place on the north-south link. This western route was more direct, allowing mail coaches to avoid the city’s narrow bridges and streets, and they would also pass closely by the ‘cupboard’ at the top of South Street.

Without leaving his seat, the coach guard could then deliver letters and packets through the trapdoor or receive outgoing mail. An antique print from the Postal Museum Archive portrays a similar arrangement on the early morning Bath to London run. In this case, the horses hardly break stride as mail pouches are handed over from a second-floor post house.*

*from Secret City of Durham by Derek Dodds