This is a manuscript illumination of St. Dunstan writing his commentary ‘On the Rule of St. Benedict.’ He wears traditional bishop grab and is holding a pen and a pen knife to sharpen his instrument.
This is a curved pen made out of bone (most likely goose). It dates to a period between the thirteenth and fifteenth century. It lacks a split nib, which is common in dip pens and quills. It is 121 mm long and nine mm wide.