http://computermuseum.informatik.uni-stuttgart.de/dev/flex/
http://computermuseum.informatik.uni-stuttgart.de/pics/flex/flex_1s.jpg
http://computermuseum.informatik.uni-stuttgart.de/pics/flex/flex_2s.jpg
http://computermuseum.informatik.uni-stuttgart.de/pics/flex/flex_3s.jpg
http://computermuseum.informatik.uni-stuttgart.de/pics/flex/flex_kbd2s.jpg
http://computermuseum.informatik.uni-stuttgart.de/pics/flex/flex_kbd2x.jpg
http://computermuseum.informatik.uni-stuttgart.de/pics/flex/flex_w1s.jpg

https://upload.wikimedia.org/wikipedia/commons/7/70/Friden_Flexowriter_at_CHM.agr.jpg
Friden Flexowriter used as a console typewriter for the LGP-30 computer on display at the Computer History Museum
By ArnoldReinhold - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=31105138

https://upload.wikimedia.org/wikipedia/commons/e/e5/Flexowriter.JPG
Model 1 SPD (Systems Programatic Double-case) equipped for edge-punched cards; most Flexowriters had paper-tape readers and punches
By Godfrey Manning - Wikipedia:Contact us/Photo submission, CC BY 3.0, https://commons.wikimedia.org/w/index.php?curid=3956248

https://upload.wikimedia.org/wikipedia/commons/9/91/Flexowriter_2201_Programatic.jpg
The Model 2201 Programatic
By Douglas W. Jones - Own work, CC0, https://commons.wikimedia.org/w/index.php?curid=49525621