Metal plate placed on the lead box

Metal plate placed on the lead box which contained the gram of radium offered by American women to Marie Curie in 1921. It is inscribed : "Presented by the President of the United States of America on behalf of the women of America to Madame Marie Sklodowska Curie in recognition of her transcendent service to science and to humanity in the discover of Radium ; The White House, Washington D.C. ; May Twentieth, Nineteen Twenty-one" (photography by Sacha Lenormand ; coll. Musée Curie)