Marcel Proust's signature. Traced from http://www.corbis.co.in/info.php?imageuid={cae1a401-533d-4a2b-9600-5a6a7e0e62e0} Corbis image cannot be copyrighted because it is just a faithful 2-D reproduction of the signature, which is itself copyright-ineligible.
https://cabourg.fr/sites/ville_dev/files/marcel-proust-signature.png
Morn