M. and Mme. Curie experimenting with radium
<bdi><a href="https://en.wikipedia.org/wiki/en:Andr%C3%A9_Castaigne" class="extiw" title="w:en:André Castaigne"><span title="French painter (1861-1929)">André Castaigne</span></a>
</bdi>
1903
<a rel="nofollow" class="external free" href="http://ihm.nlm.nih.gov/images/B30095">http://ihm.nlm.nih.gov/images/B30095</a>, <a rel="nofollow" class="external free" href="http://john-adcock.blogspot.jp/2011/11/andre-castaigne.html">http://john-adcock.blogspot.jp/2011/11/andre-castaigne.html</a>