Robert Opie has a unique way of documenting coronations: the 76-year-old has been gathering consumer products with a royal theme since the late Queen Elizabeth was crowned in 1953, when his school held a scrapbook competition.

The six-year-old Opie's compilation of bread wrappers, milk bottle tops and pictures from magazines won first prize.

Seventy years on he runs London's 'Museum of Brands', with some 12,000 objects, many of them devoted to Britain's royals.