This is a beautiful sheet of 4 stamps, issued by the Central African Republic in 2012, honoring the International Rescue Committee and Albert Einstein, who helped create the organization. The sheet includes images of the humanitarian organization and its work in Sierra Leone, Uganda, Chad, The Congo, Ethiopia and the Ivory Coast. The sheet is Yvert & Tellier catalog #2316-9, and is Post Office fresh, mint never hinged, and F/VF.