Gradual, Use of Sarum — 15th century, middle; English

Ritual, Use of Sarum, The Holy Water Service, etc. — 15th century, third quarter; England

Thomas Wimbledon, etc. — c. 1400; England

Statutes of England, nova statuta, 1 Henry IV to 4 Henry VI, Motets and conductus (fragments) — 15th century, second quarter (after 1425/1426)

Octavian — 13th century, end

Portable Secular Psalter with Antiphons; South Wales, with additions made in Hereford; 14th century, middle, and additions,…