|Source: see below|
This excellent picture of Nahum Labounsky, the brother of Avraham Labounsky. They have been, respectively, the first treasurer and secretary of the Palestinian Chess Federation. The picture had been sent to me by Ami Barav, the son of Israel Rabinovich-Barav, from Labounsky's grandson, Dori Parnas (ph. spelling). The brothers were Rabinovich-Barav's cousins.