Top left Medieval styli. Made of bone
with metal tips, of the type probably used for scoring the ruling patterns
in manuscripts until the twelfth century
Below A stick of lead or plummet, suitable
for ruling lines in Gothic manuscripts. His English example, marked with
the name of its owner Rogerus, may have been cast in the thirteenth century
Top right A page of a fifteenth-century
French Book of Hours ruled up in ink in preparation for writing
After Christopher De Hamel, Medieval Craftsmen. Scribes
and Illuminators (London: British Museum Press, 1992), pics.
15-17, p. 23.