Shaarei Yashar. Halachic Investigations by Rabbi Shimon Yehuda Shkopf. Warsaw – Pietrekov, 5685 [1928]. Two volumes. First Edition. [3], 2-4 [1] 4-342, [2]: [3], 4-112. 114-306 [2] pages, 30.5 cm. First edition of renowned book of Rabbi Shimon Shkopf, Rosh Yeshivat Grodno, well known book throughout the Diaspora of Israel, in that it forged a new way in learning and in-depth study (pilpul). The book was set out in Pietrekov and printed in Warsaw. This edition includes an advertisement page of the Warsaw Press. This page was not found in other copies. Simple binding. Old paper. Few stains. Cuts in the margins of the last pages, without damage to the text. In good condition.