Slowakische Kassettensite mit allen Einlegern

[Kirunavaara]

Martin: do you mean to write this series as 1986?
https://ez647.sk/cc/icm_ferrosdi.html

Hi, sorry I hadn't seen this edit before now:

Yes, 1986 is by now the earliest evidence of the existance of this line-up, and it was made in lots of variations until around 1990, or even later. 

Regards
Martin