Hi neo,
In 1979 Michel Lévy of the French company Architecture & Physique Appliquee introduced a tangential
tone arm called Goldmund T3 with servo unit PL-5.
Later the company was sold.
In 1984 Michel Reverchon founded the company Goldmund SA in Meyrin, Canton Geneva, Switzerland.
The Goldmund Reference turntable shown was introduced in 1985:
price turntable: $12900
price T3B tone arm: $2800
at Christopher Hanson Ltd., LA
3 years later the price was much higher. I only have the German prices:
price turntable: 30000 DM
price T3F tone arm: 10800 DM
I think, this was the last development stage.
Best Regards Toni