@Luisma All these things which you are telling are about to be ok, but you still don't get that Poland in 1984 was a little bit more wilder than you can imagine. It was last country before the Soviet Union border, Hungary or Yugoslavia were not so "wild" as Poland these days... Even without that, some trivia about radio journalists at the shows:
- not every radio journalist having an accreditation to the gig are allowed to record it;
- not every radio journalist going for a gig is going to record it, sometimes it's not necessary to do a good radio report;
- to record a gig you need a full professional recorders with access to FOH system, let's say that hand-recorder is not enough;
- media passes are going not only from the band directly, but also from the promoter.
And now according to the mid 80's in Polish Behind the Iron Curtain reality:
- the promoters security guards had their own standards;
- according to my colleague, some security guards completely don't cared what people bring into entrance (times changed)
- if you had a pass (sticker with Eddie), security thought that you can bring anything you want inside (recorders, cameras, etc.)
So as you see, you don't had to have a direct agreement with the management or the band to record the show. It's just not working like that. So, the reel-to-reel tape wasn't recorded legally, it's classic unauthorized recording, bootleg in a very direct meaning.
Anyway, I'm not here to prove anything, as the proof was revealed. I'm just have a feeling, that you levering that, because it's not going in line with your research. If you'll someday visit Poland, just drop me a line, we will listen to this tape together and discuss every single detail
Take care!