... for information:
The Thorens Reference was presented at the IFA Berlin, Germany in September 1979:

Pic of the prototype shown at the IFA Berlin, Germany, September 1979
Thorens built 100 units by order only with styling(color etc.) and features according to the customers' request.
The advertising price for the turntable only was 12000 DM - about $6700 at that time, but it soon increased to $9900.
I like the tt modest in black and silver:

by the way, it's a perfect turntable for a newbie ...

because it's "built for eternity", e.g., the floating subchassis alone consists of 121 lbs aluminium alloy made by sand casting.
Regards Toni