[ILLUMINATION]. CASSIDORUS, Magnus Aurelius. Expositio in Psalterium. [Basel: Johann Amerbach, 1491.] A SINGLE LEAF FROM CASSIDORUS' PSALTER, PRINTED BY AMBERBACH, on the first printers in Basel. Small folio (287 x 197). Single leaf, containing Psalm 71. 5-line initial in blue, 7-line initial in blue and red, 2 3-line initials in red, capital strokes in red. Matted, framed and glazed (not examined out of frame).