1 Gloria-Credo pair, 2 Sanctus, 1 Agnus = 4 (all fragmentary)
(La Rue)-1, (Orto)-1, Prioris-1, anon-1
2 fragmentary parchment folios, 520-5 x 330-65, recovered from Plantin bindings, and 2 fragmentary parchment folios from same original manuscript, ca. 430 x 270, now serving as guard sheets for MS 331 in this library. Some music obliterated by abrasion or trimming. First two folios have modern pencil foliation, 1-2. Copied by a single scribe. Staff height ca. 23. Inked calligraphic initials.
Early 16th century. Presumably copied in Low Countries.
Census-Catalogue of Manuscript Sources of Polyphonic Music 1400-1550