It might be on the up-and-up, but it does make my bullshit-sense
 tingle.  All I know is that shipping a collection that size across the
 Atlantic would cost a fortune.
  I have no information about the credibility of
the seller.  It's
 certainly
 not the "largest computer collection in the world" but it should be an
 interesting discussion.  ;) 
 
Although I have never met him, the chap is a regular contributor to
CVML, a dutch language CLASSICCMP variant.
It is almost certainly genuine.
                                        Jos Dreesen