Sefer Shiurin of the Torah of Rabbi Yaacov Yisrael Kanievsky with a dedication of the author, Jerusalem. 5716. 88 pages, height 24 cm, width 16 cm. In the leaf before the title page, there is a long dedication and blessing for a long life in the holy handwriting of the author. The main part of the book is to establish the measurements of the amah, beitza and the reviit, according to the determination of his brother-in-law, Maran HaChazon Ish, of blessed and saintly memory. Please refer to the Hebrew description in the catalogue to see the biography of HaGaon Rabbi Yaacov Yisrael Kanievsky (5659-5745). The binding is taken apart, in good condition.