Et Ketz, calculations and gematriot on matters of the future redemption, by Yechacham – Rabbi Yitzchak Chaim HaCohen of the Kantorini Chazanim. Amsterdam, 1710. Printed by Shlomo Proops. Single edition. Engraved illustration of the sacrifice of Isaac on the first page. Rabbi Yitzchak Chaim HaCohen of the Kantorini Chazanim (1644-1723, Otzar HaRabbanim 10658), a Torah scholar and physician, Rabbi of Padua. Taught the Ramchal and authored many compositions. This book deals with various calculation and proves that the time of redemption has already begun: The first time has already arrived, there is a middle time in which apparently the Mashiach will be born – this is 1710 (the time the book was printed), and the last and real time in which the redemption will arrive will be 30 years later – in 1740. This composition greatly impacted the messianic hopes and expectations for the Redemption in those years. For information about the book see: Shneur Zalman Shazar, "The Hope of the year 1740", inside: Orei Dorot, Jerusalem 1971, Part 1, pp. 127-153. [4], 72 leaves. 20 cm. Good condition. Stains and wear. Worming to several leaves. Restored tears to title page. New binding.