Cassiodori Clarissimi Senatoris in Psalteriu[m] expositio

[340] leaves ; 29 cm (folio) Introductory letter by Johannes de Lapide Title from leaf 1a Imprint from colophon: "Arte imp[re]ssoria p[er]fecta est p[er] magistru[m] Johanne[m] de Amerbach p[rae]clar[a]e Basilien[sis] vrbis ciuem. Anno d[omi]ni M.cccc.xcj." Signatures: aa⁸, bb⁶, cc⁸, a-m⁸·⁶, n-p⁸, q-z, A-G⁶, H-T⁸·⁶, U-Y⁸ Printed in double columns with head-line and marginalia. 50 lines per page. 22b has single column. Spaces left for capitals with guide-letters. Capitals rubricated throughout text in red. Initial letter of text in blue and red Gothic script Numbers of Psalms given in headlines First edition and only incunabular printing of this text