The letter dated October 26, 1970 is signed With at the moment less friendly greetings tuus Hans Kruse.

He writes to Curator Claeson, Södertälje konsthall, City Culture Committee:

Brother! I must admit that I am quite surprised and frankly a little pissed off at the nonchalance that Södertälje konsthall shows us with the exhibition The Threepenny Opera. As you know, I am responsible for all material in the exhibition returnes to owners after the end of the exhibition. I have not even received a letter or any message whatsoever about what happened to it since it left you – of course through Acke Oldenburg, but it is certainly not the right way.
(see scanned letter)

The letter material also states that audio tapes belonging to Hans Kruse were stolen from the exhibition and not found.

On November 27, Kruse writes to Claeson:

Brother! The exhibition material from “The Threepenny Opera” is still with you. Our opportunities to pick it up are currently quite small after a hectic exhibition period. You must be polite to arrange a cheap co-freight of it all here to Linköping. – Truth be told, the finishing work has not been handled in the very best way on your part, so you may be able to improve your slightly tarnished reputation by arranging a return shipping to us. And a little further down in the letter I have not yet seen any audio tape instead of the stolen one, which was my personal one. (see scanned letter)

What Södertälje konsthall had to say in its defense is not documented in the archive, and the question of whether the criticism is justified is partly justified or unjustified must therefore so far be left unanswered!

Sources: Södertälje konsthalls archive folder, compiled by Anneli Karlsson.