Ms. written and illuminated in Urbino, Italy, and dated Oct. 8, 1456.
Decoration: 1 pencil drawing, 1 decorated border with putti supporting armorials, 5 illuminated initials, 21 unfinished initials drawn in pencil.
The illumination of B.20 is unfinished. 21 initials were drawn in pencil but not painted.
The text is a compilation by Fredericus de Venetiis based largely on the work of Nicholas de Lyra; after the colophon are religious poems written in the same hand as the manuscript; one leaf is missing, but some 400 lines remain--Cf. PML files.
Scribe: Berardo di Mazi da Brescia; colophon is signed and dated: Questa sancta opera de questa expositio del apochalipsi fu acopiada per mi Basdo di mazi da bressa...Anno domini...Civitatis Urbini Anno 1456 die. 8. octobris