1. University of Pennsylvania, Ms. Coll. 591 Folder 42 Folder 42 DS ID: DS30103 Title: Liturgical text Date: 1400s.
3. Columbia University Rare Book & Manuscript Library, MS X893.19 K71 no. 12 DS ID: DS19611 Title: Letter and Hebrew text Author: Shemuʼel Pinḥas Sṭiller Place: Ukraine Date: 1865.