Polish delegates to the World Zionist Conference in London, August 1945;
the gentleman centre-left with the large grey beard is Dr. Emil Sommerstein.
Dr. Sommerstien was part of the so-called Polish-Soviet Extraordinary Commission for Investigating the Crimes Committed by the Germans in the Majdanek Extermination Camp in Lublin.
On August 30, 1944, just after the commission had published its report, Sommerstien was interviewed by a journalist from the Jewish Telegraphic Agency who subsequently reported that of the 1,500,000 people the Commission claimed were killed at the camp, 1,000,000 of them were Jewish.