File:Nadal-Royal Box.jpg - Wikipedia
File:JamesOssuary-1-.jpg - Wikipedia
File:The Darien Chest, Royal Museum, Edinburgh.jpg - Wikipedia
File:Police Box, Royal Mile - geograph.org.uk - 2310993.jpg - Wikipedia
File:Royal Mail Wall Box.jpg - Wikipedia
File:Post box at Heather Road, Heswall.jpg - Wikipedia
File:Gordon-Cumming in the witness box, 1891.jpg - Wikipedia
File:Triggs-hodge new gold post box.jpg - Wikipedia
File:The Peregrine (later renamed the Royal Caroline) in Two Positions off the Coast) by John Cleveley the Elder.jpg - Wikipedia
File:Royal Baking Powder.jpg - Wikipedia
File:Coronation of George V 1911 2 (cropped).jpg - Wikipedia
File:Winnards Perch post box.jpg - Wikipedia
File:The Royal Box at Wembley Stadium - geograph.org.uk - 1866643.jpg - Wikimedia Commons