What's the rarest or most unusual software item do you own?

[Lars Brinkhoff]

Leif Johansson wrote:
> Noel Chiappa wrote:
>> Leif Johansson wrote:
>>> Me and peter recently discovered he saved the rest of the box.

Is that Plåth?

>> Is that the one I saw in the 'MIT-MC in Sweden' pictures a while back?
> Wasn't on the list then but maybe, yes.

Is there a list?  What's on it?

> A lot stuff got lost when Stackens big room got evaced from KTH many
> years ago.

Is it known what got lost, and what got saved?

Perhaps you know whether MIT donated a KA10 to Stacken or Plåth?