1. Columbia University Rare Book & Manuscript Library, MS X893.19 Sa1 DS ID: DS18706 Title: Letter and Hebrew text Author: ʻAzariah Ḥayyim Sanguinetti Place: Italy Date: 1759.
2. Columbia University Rare Book & Manuscript Library, MS X893.19 M583 DS ID: DS19608 Title: Letter and Hebrew text Author: Yitsḥaḳ Firo Place: Iraq Date: 18--