Vertical "MAIL" Wall Mount Copper Mailbox $89.95. Solid copper construction. Available in Antique Copper. Overall measurements: 10-1/4" L x 5-3/8" W (front to back) x 11-5/8" H (± 1/2"). 4-3/4" center to center mounting holes.
Blue and Red post boxes at Windsor Castle in Berkshire, England. The Blue post boxes were for airmail letters and placed at important sites, they only lasted for eight years because of the rapid expansion of air services to Europe and the British Empire their usefulness was made redundant