The Arbuthnott Missal is the only extant missal (liturgical book) of the Scottish Use. It won a prestigious top award in the British Library's Hidden Treasures competition 2007. James Sibbald, priest of Arbuthnott, Scotland, wrote it in 1491 on vellum in Gothic characters with illuminations. It is the only complete service book of its kind known to have survived the Reformation in Scotland. It provides a unique and irreplaceable insight into the forms of worship practised in Scottish churches not only at the time it was made but for a period of about four hundred years before. It mainly follows the Sarum Rite.