31 cm. (fol.)Part 2 with title: "Secundus scripti Oxoniensis doctoris subtilis fratris Joannis Duns Scoti ordinis Minorum super Sententias"; pt. 3 with title: "Tertius scripti Oxoniensis doctoris subtilis fratris Joa[n]nis Duns Scoti ordinis Minorum super Sententias"; pt. 4 with title: "Quartus scripti Oxoniensis doctoris subtilis fratris Joannis Duns Scoti ordinis Minorum super Sententias."Edited by Maurice O'Fihely.Imprint from colophons, dated as follows: on verso of penultimate leaf of pt.1, 20 October 1506; pt. 2: 22 October 1506; pt. 3: 26 October 1506; pt. 4: 3 November 1506.Irregular foliation in pt. 3: 72, [2], 72, then 74 and then foliation continues correctly.Foliation: pt.1: 160, [8], 161-223, [1] leaves; pt. 2: 149, [1] leaves; pt. 3: 72, [2] leaves, leaf 72, 74-113, [1] leaves; pt. 4: 240 leaves.Signatures: pt.1: a-y ç [et] [con] [rum], A-C (C8 blank); pt. 2: 2a-2m 2n² 2o-2t 2v (2v6 blank); pt. 3: 3a-3i 3k² 3l-3n I 3o 3p¹ (I6 and 3p10 blank); pt. 4: 4a-4x 4y 4z 4[et] 4[rum] 4A-4C 4D¹ 4E.Final leaf of each of the parts 1-3 is blank.Text printed in double columns; with printed marginalia.Woodcut printer's device at colophon of each part: tower of Torresano (cf. Roberts, W., Printers' marks, p. 219); initials.Commentary on Peter Lombard's Sententiarum libri IV.