I saw your note on the upcoming Nobel Peace Prize sale . You mention the reverse isn't shown. Well, unless I'm missing something, the obverse in the PR release isn't even of a Peace Medal. That's the Erik Lindberg portrait which was used on the Literature, Medicine, and Physics and Chemistry medals.

The designs for the Peace Prize were awarded to the Oslo-based sculptor Gustav Vigeland (1867-1943). I think it was the only medal he ever designed, and since he was not a medallist the reductions were done by Lindberg.

Here's what the Peace medal portrait looks like.Not as familiar as Lindberg's.

For more information on the Nobel Peace Prize, see:
http://www.nobelprize.org/nobel_prizes/peace/

To read the earlier E-Sylum article, see:
CHRISTIE'S TO OFFER NOBEL PEACE PRIZE MEDAL(www.coinbooks.org/v20/esylum_v20n08a28.html)