This is a public domain image from <a rel="nofollow" class="external text" href="http://web.cn.edu/kwheeler/images/Beowulfpage.jpeg">Kip Wheeler's homepage at Carson-Newman College</a>.  Kip Wheeler declared its status thus: "The original image of the Beowulf manuscript comes from the anonymous Anglo-Saxon scribe who wrote the 'Nowell Codex', Cotton Vitellius A.x.v. 129 r. It appears here as reproduced in Julius Zupitza's Beowulf: Autotypes of the Unique Cotton MS Vitellius A.xv. in the British Museum with a Transliteration and Notes. E.E.T.S. O.S. 77. London: Trubner &amp; Co., 1882. This image is public domain."
Originally uploaded to English Wikipedia by Jwrosenzweig.