The 'Tractatus quadrantis veteris'. Decoration: Diagrams (ff. 65v, 68r-70r), including one of a quadrant (f. 65v), and tables on (ff. 65v-66r). Large initials in gold and colours (ff. 64r, 66v). Smaller initials in red or blue with penwork decoration in the other colour. Paraphs in red or blue...
