American mathematician/statistician Jack Kiefer at Berkeley, California examining fungi at a tree
<bdi><a href="https://en.wikipedia.org/wiki/en:George_Bergman" class="extiw" title="w:en:George Bergman"><span title="American mathematician">George Bergman</span></a>
</bdi>
Scanned via Epson Perfection V370; see also <a rel="nofollow" class="external free" href="https://opc.mfo.de/detail?photo_id=5402">https://opc.mfo.de/detail?photo_id=5402</a>