P-Cua (Coimbra) Arquivo Distrital e da Universidade IV-3ª Gav. 44 (16)
Recto, right margin, and verso, left margin, penciled shelf-mark:
INV./BOL./ 96 (42) ; IV 3ª S. Gv. 44 (16).
Together with P-Cua IV-3ª Gav. 44 (17) and (18), this fragment is one of three leaves dismantled from the same lost antiphonary: evidences for their common source are the identity, among others, of: (1) textual and musical ductus (especially of more complex shapes such as 'a', rising liquescences, quilisma ...); (2) decorations (filling coloured lines inside of bigger capitals, dots at the extremities of serifs); (3) occasional red-line boxings for rubrics, and so forth... Fragments 17 and 18, and possibly this one as well, were used as a cover in the same notebook belonging to the notary António Martins in the late 16th century.