A photo of this plane in an abandoned state is currently on sale on ebay. The Werknummer isn't legible on the scan, but the seller told me he reads 730442. As the plane wears an interesting scheme I was interested in its service history, so I asked whether there is any info.
I will post the link when the bidding has ended.

(*selfish wink)
Christian
EDIT: It has ended: That's the a/c in question (with a belated thanks to Ed West):
http://cgi.ebay.de/ws/eBayISAPI.dll?...=STRK:MEWAX:IT