Hi, it's nearly impossible to identify, at that time there were a lot of swivel chairs from every ordinary German furniture manufacturer, including GDR.
Indeed you are right, I didn't even know there was a Stasi museum, sorry.
So why not contact the museum?
On behalf of @eozb, who doesn't seem to think it necessary to say thank you, it's to me to say merci, because I like these lounge chairs too!
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