This is a beautiful sheet of 8, issued in 2010, honoring the winners of the 2009 Nobel Prize in Physics and Chemistry. Featured famous winners include the "Father of Fiber Optics" Charles K. Kao, Canadian physicist Willard Boyle, American scientist George E. Smith, structural biologist Venkatraman Ramakrishnan, Professor of Molecular Biophysics & Biochemistry Thomas A. Steitz, and Israeli crystallographer known for her work on the ribosome Ada Yonath. The sheet is fresh, mint never hinged, and F/VF.