Boris Johnson, the Eton pillow gladiator: Unseen pictures show Mayor of London with school friends, aged 15 By Eleanor Harding and Laura Briggs Tousled hair flying and Eton uniform askew, a young Boris Johnson hones his skills for the rough-and-tumble of political debate. These images show the future Mayor of London at 15, clearly already a fan of clowning around. He and another boy hit each other over the head as they balance on a plank for an impromptu pillow fight. The photographs were taken by local newspaper photographer Ian Sumner in 1979 - but lay untouched for 34 years in a box. Unseen pictures of Boris Johnson aged 15 messing about at Eton have been unearthed Mr Sumner, now 60, found the old negatives by chance three weeks ago while clearing his office. He said: "As soon as I saw these pictures of Boris Johnson I knew it was him. They would have been part of a set of 100 I took for the newspaper, and they would probably have only used one. So no one has ever seen these before. Alongside the pillow fight shots is a picture of Mr Johnson, again wearing the famous Eton tailcoat, in front of the school with what looks like a pupils" band. In contrast to strict modern security, Mr Sumner was free to roam the school grounds on open days. Same old Boris: The photographs may be over 30 years old, but the blond mop of hair is unmistakable Boris with another Eton pupil taking part in a pillow fight in 1979 He said: "It was very rare for people in those days to take photos there with decent cameras. I used to just walk around the grounds of Eton and take photos of anything interesting. Nobody ever bothered about me. Boris went to Eton on a scholarship aged 13 in 1977 and is known to have been so ferocious at rugby that he broke his nose four times. There he met future rival David Cameron, two years his junior. Mr Johnson was appointed Captain of the school and elected to Eton's elite group, known as Pop. Mr Sumner, who lives in Pilton, Somerset, with his family, hopes to include the photographs in a new exhibition of his Eton work. Pop culture: A pupils' band show off guitars, with Boris clearly visible on the right of the photograph Still a free spirit: Boris Johnson poses on board a yacht on the river Thames beside Tower Bridge after the announcement of London being chosen as the host city for the Round the World Yacht Race