You've no doubt seen it in a trendy design store, a hotel lobby, or a wealthy friend's living room. The Swan Chair, designed by Danish architect Arne Jacobsen in 1958 for the SAS Royal Hotel in Copenhagen, is one of the design world's most famous chairs, thanks to its welcoming and comfortable curves and lack of straight lines. To celebrate its 50th anniversary, Fritz Hansen, the original manufacturer, released 1,958 limited-edition Swan Chairs on Saturday, each in swan-white, semianiline leather with a pearl-white base, each with a sterling silver pendant around its base, engraved with a unique number. The chairs will be available in selected stores around the globe, including Suite New York. For more information, go to Fritz Hansen's site.