Fascinating findings (and documents) by the Computer History Museum Slovenia about the Peerless Foam Moulding "Gemini" case designed by Satherley Design Associates and resold by BICC-Vero Electronics. Besides the Partner the same case was also used by 2 different Apple II integrations and a rare Logitech LG-10 computer.
That's hard to read. The writing assums familarity too much. Decades, years, manufacturer names, references.
Decade is 80s, spanning from 1983 to 1985, Manufacturer is Iskra Delta, a pioneering computer company from Slovenia, which used to be a former federal state of Yugoslavia. Among other things, their crown achievement was implementing the first major police computer network in China to manage their at the time rapidly increasing population and its related census and security bookkeeping problems. This might elucidate somewhat:
https://www.racunalniski-muzej.si/en/exhibitions/exhibition-...
Update the original article :)