This is a beautiful 3 stamp sheet, issued by the Guinea Republic in 2012, to commemorate the life of Danish Physicist and Nobel Peace Prize Winner Niels Bohr (1885 - 1962). Also featured are Werner Heisenberg, Robert Oppenheimer and Albert Einstein. The sheet is Michel catalog #9392-4, and is Post Office fresh, mint never hinged, and F/VF. Click here to visit my eBay Store for other auctions and Direct Sale items: