880-01 Shirwānī, Masʻūd ibn Ḥusayn, -1499 or 1500. 880-03 Manṣūrī, Maḥmūd al-Imām, former owner. DLC Mansuri Collection (Library of Congress) DLC manuscripttext ara Manuscript. Title from fol. 1a. Scribe not identified. Place of writing not determined. Paper; cream color laid paper with horizontal chain lines and countermark of A--C separated by a vertical line topped with a trefoil; black ink with red overlining; catchwords. Naskh; 21 lines in written area 12.5 x 5.5 cm. Fol. 1b-34b. "H-0956 = 5.160." Library of Congress. Mansuri Collection, 5-160. Binding; black half leather with black grain sides and flap; envelope binding; text block not attached to binding. Brockelmann. GAL, Purchase of Mahmud al-Mansuri collection, 1945. Samarqandī, Muḥammad ibn Ashraf, active 13th century. Risālah fī ādāb al-baḥth. Dialectic--Early works to 1800. Logic, Medieval. Islamic philosophy--Early works to 1800. Manuscripts, Arabic--Washington (D.C.) https://hdl.loc.gov/loc.amed/amedarabicmss.2017481104