This is a beautiful 3 stamp sheet, issued by Guinea in 2012, celebrating the 60th anniversary of Albert Schweitzer winning the Nobel Peace Prize (1952). Each stamp and the sheet feature images of Schweitzer, as well as Nobel Peace Prize winner Ellen Johnson Sirleaf, the Rufous-vented Paradise-Flycatcher (Terpsiphone rufocinerea), and a short biography of Albert Schweitzer. The sheet is Post Office fresh, mint never hinged, and F/VF.