Three Leaves From A Decorated Manuscript On Vellum [Italy, Early Fourteenth Century]

3 leaves (a bifolium and a singleton), each 310mm. by 215mm., single column, 30 lines in black ink in a fine and professional university hand, capitals touched in red, paragraph marks alternately in red or blue, running titles in red “L[iber]” and “Phy[sica]” at head of each leaf, some early erasures and corrections, small flaws in vellum and occasional stains, else in fine condition.