<a href="https://en.wikipedia.org/wiki/British_Library" class="extiw" title="en:British Library">British Library</a> manuscript Egerton MS2901 folio 3 verso. A 12th-century manuscript page containing a collection of papal decretals.
Twelfth-century scribe
Duggan, Charles <i>Twelfth-Century Decretal Collections</i> Athlone Press, London 1963 plate VIII and page 195