Two portrait sketches, one of Max Born at the piano, one of a little girl (presumably either Irene or Gritli), both 1917 (presumably by Hedi). Photocopies of poems and notes, apparently thank-you notes, perhaps from guest books - some by Hedi Born, others by scientists and their families, such as the Courants and Max Planck. Some with multiple signatures of famous scientists. Envelope of visiting cards, including those of Hans Courant and Princesse Marguerite de Broglie.