Choir breviary (fragment).[between 1400 and 1450]latManuscript fragment, on parchment, of a choir breviary, containing part of the offices for EpiphanyIn Latin.Musical notation on four-line red staves.References to Thomas Becket struck through on verso.Layout: double columns of 51 lines.Script: gothic liturgical hand.Decoration: Rubricated. Initials in blue with red penwork. Large illuminated initial "A" with full border on verso, gilt.