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. His 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”. [ALL VOLUMES]: 230x310mm. [58+389+316+LXXVII] + [393-670+319-568] pages. Hardcover. Both volumes in good condition.