North-African soldiers, Oise, France, 1917. <a href="https://en.wikipedia.org/wiki/Autochrome" class="extiw" title="w:Autochrome">w:Autochrome</a> color picture.
<bdi><a href="https://en.wikipedia.org/wiki/en:Jean-Baptiste_Tournassoud" class="extiw" title="w:en:Jean-Baptiste Tournassoud"><span title="French photographer">Jean-Baptiste Tournassoud</span></a>
</bdi>
<a rel="nofollow" class="external free" href="http://www.greatwar.nl/frames/default-color.html">http://www.greatwar.nl/frames/default-color.html</a> . The source is listed on <a href="https://en.wikipedia.org/wiki/Wikipedia:Public_domain_image_resources" class="extiw" title="w:Wikipedia:Public domain image resources">w:Wikipedia:Public domain image resources</a>.