Een foto van Louis Pasteur door Paul Nadar
<bdi><a href="https://www.wikidata.org/wiki/Q4141511" class="extiw" title="d:Q4141511"><span title="French photographer (1856-1939)">Paul Nadar</span></a>
</bdi>
Reprinted photograf card with signature of L. Pasteur bij publisher <a href="https://fr.wikipedia.org/wiki/Alphonse_Aulard" class="extiw" title="fr:Alphonse Aulard">fr:Alphonse Aulard</a>(died 1928) (see discussion page)