The price tags might be impressive, but the auction serves as a unique archive charting the 40-year career of the Hollywood legend. It's also the first time these items, which Hepburn left to her sons, Sean Ferrer and Luca Dotti, have gone up for sale, giving Hepburn fans a rare opportunity to buy and view piece's from the star's wardrobe.

With this in mind, Meredith Etherington-Smith, creative consultant on the auction, is anticipating attention on a global scale.