TWO VOLUME SET. RARE catalog of Hebrew Incunabula from the Collection of the Library of the Jewish Theological Seminary of America [JTS]. The author - Shimon Mordukhovich Iakerson (b.1956) is a Russian scholar specializing in medieval Hebrew manuscripts and incunabula. kHis opus magnum is the "Catalogue of Hebrew Incunabula from the Collection of the Library of the Jewish Theological Seminary of America", wherein he describes the largest collection of Hebrew books printed with movable type before 1501 A.D., and for which he received the first Honorable Medal of the Euro-Asian Jewish Congress “For Service to the Jewish People”. [BOTH VOLUMES]: 310x230mm. [58+389+316+LXXVII] + [393-670+319-568] pages. Grey cloth embossed Hardcover laid in grey cloth slipcase. Maroon embossed illustration on both cover. Maroon lettering and JTS emblem on spine. Slipcase spine upper edge bumped and dirty. Spine edges bumped. [VOL.I]: Cover upper corners slightly bumped. [SUMMARY]: Both volumes are otherwise in very good condition.