Diagram of informatory road sign of France. C26a sign.
<a href="//commons.wikimedia.org/wiki/User:Roulex_45" title="User:Roulex 45">Roulex 45</a> self-made from source above
<a rel="nofollow" class="external text" href="http://www.securite-routiere.gouv.fr/IMG/pdf/1-1-_2009_01_catalogue_des_signaux_routiers_200908_cle731853.pdf">Catalogue des signaux routiers français</a> sur <a rel="nofollow" class="external free" href="http://www.securite-routiere.gouv.fr">http://www.securite-routiere.gouv.fr</a>