Sefer Sha’arei Yashar , seven parts. Halachic studies in the laws of uncertainties, majority, possession and testimony.
Scholarly work by Rabbi Shimon Shkop, who paved a unique path in investigating these topics.
With the leaf of errata at the end of Part II. These leaves are lacking in many copies.
Part I: She’arim 1-4. [3], 2-4. [3], 2-4, [1], 4-342, [2] pp.
Part II: She’arim 5-7. [3], 4-112, 114-306, [6] pp.
Approximately 30 cm. Acidic leaves. Several loose leaves. Fine condition.