Manuscript leaves, written in the stages of preparation of the book "Eifat Tzedek" on halachic measures, in the handwriting of the author, Rabbi Ya'akov Yisrael Kanievsky (the "Steipler"), author of Kehillot Ya'akov. [Bnei Brak, before 1949]. The book Eifat Tzedek, was written at the height of the halachic polemic between the Chazon Ish and his brother-in-law the "Steipler", on the one hand, and Rabbi Chaim Na'eh of Jerusalem, on the other, on the matter of halachic measurements. Following the opinion of the Chazon Ish that the measure of an amah and a revi'it are larger than the measures published by Rabbi Chaim Na'eh in his book Shiurei Torah, the Steipler was asked by his brother-in-law to write his book Shiurin D'Orayta to prove that the halacha is according to the Chazon Ish. Rabbi Chaim Na'eh responded with his book Shi'urei Zion in which he attacked the Steipler's claims and proofs. The Steipler rejoined with his book Eifat Tzedek (1949). In the introduction he writes: "The book Shi'urei Zion written by the Gaon author of Shi'urei Torah was brought to me and its entire purpose is to oppose my teachings and my book Shi'urin D'Orayta…". In this book he sharply replies to the objections of Rabbi Chaim Na'eh. Only after the death of the Chazon Ish and Rabbi Chaim Na'eh in 1954, did the Steipler republish his final opinion in the book Shi'urin Shel Torah, Jerusalem, 1957, in which he included all his opinions on the subject of the measures of mitzvot, omitting the words of polemic found in his two previous books. These are draft leaves of the book Eifat Tzedek with variations from the printed version. A photocopy is enclosed for comparison. [3] leaves, written on one side. 22 cm. Varying condition, good to fair. Stains and wear, one leaf has a tear with damage to text.