Delete comment from: Ken Shirriff's blog
Many Thanks for this great page!
I started my IBM career in 1979 at the Munich branch office. We had a /360 Mod. 91 installed at our customer 'Institute for Plasma Physics' (IPP). Your picture 'Console of the IBM System/360 Model 91' is NOT the Munich machine.
https://www.mpcdf.mpg.de/about-mpcdf/publications/bits-n-bytes?BB-View=200&BB-Doc=211
The Mod. 20 was developed by the German IBM laboratory in Boeblingen, this lab as a collection of historic IBM products, including an Mod. 20 which is still in running condition. The German Lab is still working on new generations of IBM System z mainframes.
One Mod. 20 was rescued from defunct German factory in April 2019, see the great story
https://ibms360.co.uk/?page_id=22
best regards
Norbert Ziegeler
Aug 7, 2019, 6:13:26 AM
Posted to Iconic consoles of the IBM System/360 mainframes, 55 years old