British Library Collection - <a href="https://en.wikipedia.org/wiki/Cotton_Library" class="extiw" title="en:Cotton Library">Cotton Library</a> manuscript Claudius A.iv, folio 199 verso. A 12th-century manuscript page containing a collection of papal decretals.
Twelth century scribe
Duggan, Charles <i>Twelfth-Century Decretal Collections</i> Athlone Press, London 1963 plate IV and page 194.