Facsimile of a page from the <i><a href="https://en.wikipedia.org/wiki/Book_of_Taliesin" class="extiw" title="w:Book of Taliesin">Book of Taliesin</a></i> (folio 13 recto), showing the last lines of the poem <i><a href="https://en.wikipedia.org/wiki/Cad_Goddeu" class="extiw" title="w:Cad Goddeu">Cad Goddeu</a></i> and the beginning of the poem <i>Mabgyfreu Taliesin</i> (= BT 27).
medieval scribe
William Forbes Skene, <i>The Four Ancient Books of Wales</i>. Vol. 2. 1868. <a rel="nofollow" class="external text" href="https://books.google.com/books?id=7uEIAAAAQAAJ&amp;printsec=frontcover">Following page 108</a>