1. Princeton University, Islamic Manuscripts Garrett no. 754H DS ID: DS2930 Title: Kitāb ʻUṣfūrī Author: Muhammad ibn Abi Bakr Place: Turkey Date: 25 R[abīʻah] I 1266 [February 8, 1850
2. Columbia University Rare Book & Manuscript Library, MS X893 Af22 DS ID: DS19735 Title: Legal text Author: Caleb Afendopolo Place: Turkey Date: 1497.