It’s been 25 years since Audrey Hepburn‘s death at 63, and yet each time you think you’ve seen every single image of her, it seems like another batch of throwbacks (and thereby, of course, dorm room decoration fodder) comes to light. The latest, taken by 20th-century photographers like Terry O’Neill and Norman Parkinson, comes courtesy of the exhibition “Audrey Hepburn: Beyond the Screen,” on view at Proud Central in London from August 17 to September 30. While there’s no shortage of Hepburn at her finest, the show also gives a rare look into the three-year window of life she had pre-peak fame, between being scouted in 1950, shortly after her family left their native, then Germany-occupied Netherlands, and winning an Academy Award, BAFTA, and Golden Globe for her first starring role in Roman Holiday in 1953. Even in Bob Willoughby’s snapshot of Hepburn after her first official photo shoot that same year, shortly after filming wrapped, Hepburn looked a natural in front of the camera. Take a look back at those moments and more, here.