The Beatles – a teenage photographer's shots

Shots of The Beatles’ first US concerts are expected to sell for £250,000 ($347,000) at auction. Mike Mitchell, 18 at the time, snapped hundreds of never-before-seen photographs of the band’s performances at the Washington Coliseum and the Baltimore Civic Centre in 1964. The negatives, taken only with ambient light as Mitchell had no flash, have sat for decades in his basement