Page of the Codex Sierra, a 16th century Mixtec manuscript.
<span lang="en">Anonymous</span><span style="display:none">Unknown author</span>
<a rel="nofollow" class="external autonumber" href="http://www.lafragua.buap.mx:8180/xm-dist/visualizar.jsp?uri=xmldb:exist://localhost:8180/exist/xmlrpc&amp;collection=/db/xmlibris/Buap/Lafragua/Fondo%20documental/Codice%20Sierra">[1]</a>