Note to researchers: This collection is currently closed in preparation for the Edward Blank YIVO Vilna Collections Project.

The collection consists of manuscripts relating to Karaites.  Included are studies by Raphael Mahler, Reuben Pahn, G. Levi-Badanitch, Ananiasz Zajaczkowski, A. Kahan, Majer Balaban.  Topics include:  Karaites in Poland; Karaites and the Tartars in Crimea;  Karaites in Galicia.