Sefer Yashresh Yaʻaḳov
Subtitle: ʻal Mas. Yevamot. ʻIm Shut Sefer ha-yashar le-R. T. : le-Mas. Yevamot.
Contributors: Tam, Jacob ben Meir, ca. 1100-1171.; Epstein, Jehiel Michael ben Aaron Isaac, Halevi, 1829-1908.
Publisher: ḥ. mo. l., 1983?]
Published: 1983
Place of publication: [Ḥ.m
Language: heb
Number of pages: 273
Subjects: Tam, Jacob ben Meir, -- ca. 1100-1171.; Talmud. -- Yevamot -- Commentaries.
Other titles: Yashresh Yaʻaḳov; Shut Sefer ha-yashar le-R. T.; Or la-yesharim.
Work titles: Yashresh Yaʻaḳov
Notes: Cover title.

Only the section on Yevamot from Sefer ha-yashar is included; it contains the commentary Or la-yesharim of Jehiel Michael ben Aaron Isaac Halevi Epstein, and is printed first in the volume.

Sefer Yashresh Yaʻaḳov originally published: Lemberg, 623 [1862 or 1863]. Sefer ha-yashar originally published: Ziṭomir : A. Sh. Shodoṿ, 629 [1862 or 1863].