Selling: Achtung baby berlin wall fragment

[unnamedbe]

Hi all,
I am the proud owner of a very rare U2 collectible of the Achtung Baby era.

It is the piece of the Berlin Wall, and trabant, etc, so it is this:
http://www.u2wanderer.org/silver/sil024.html

Now I was wondering, could anyone here tell me what it is worth (so I can list it on ebay with a target price), or if you are interested: Make me an offer

Kind Regards