An Edward VII pillar box, Park Avenue / Castle Avenue. The roadside post box was introduced in Britain following the 1840 postal reform which provided for universal affordable postage. In 1859 an improved cylindrical design of pillar box was created for standard use nationwide. This design had its posting aperture positioned beneath a cap for greater protection from rainwater.The pillar box on Park Avenue / Castle Avenue is of this type and carries the monarchical insignia of Edward VII. (location accurate to the nearest 1m based on available informaion)