Mauritania 359-360, C177-C179, C180 imperf & deluxe sheets, MNH. Michel 563B-567B, 568 Bl.17B, A563-A567. Nobel Prize winners, 1977. Irene and Frederic Joliot-Curie, chemistry; Emil A. von Bering, medicine; George Bernard Shaw, literature; Thomas Mann, literature; International Res Cross Society, peace. Lion; George Marshall, peace.