The mass-book fragments of eighth-century date suggest codices impressive in size, layout and script. These, along with the fragmentary office lectionary, enable us to suppose that at least the advanced centres of book production in England before the Viking incursions had the capacity to supply liturgical books. The Continental import that unquestionably sheds light on the making of liturgical books in England is the famous Leofric Missal. At heart this is a late ninth-century mass-book of the supplemented Gregorian type common in northern Francia by that time; it was brought to England, quite possibly to Canterbury. Evidence concerning liturgical books at the male monastic house in Winchester, the New Minster, exists in both direct and indirect witnesses. Earlier evidence for the New Minster comes in the extremely complex book nicknamed, the Red Book of Darley. The Benedictional of St Æthelwold, arguably the best-known late Anglo-Saxon liturgical book, is datable to that prelate's episcopacy at Winchester, 963-84.