Alfred Tarski; photo was scanned without modifications, like colour restoration
<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>
CC BY-SA 4.0
scanned via Epson V370; <a rel="nofollow" class="external free" href="https://opc.mfo.de/detail?photo_id=6091">https://opc.mfo.de/detail?photo_id=6091</a>