Solution to the question of the location of the International Date Line that determines the weekdays and Shabbat across the entire world, by Rabbi Yechiel Michel Tukachinsky. Jerusalem, Shevat, 1943.
Foundational work on the affair that agitated the yeshivah community in exile in Japan during the Holocaust. This question was placed before the rabbinic leaders of Jerusalem.
Very fine condition, with an additional jacket cover. With diagrams.