Here are some Curetronic modules all named "0" with the same knob picture that all aren't real modules (there are no Curetronic blind panels):

https://www.modulargrid.net/d/curetronic-0
https://www.modulargrid.net/d/curetronic-0-
https://www.modulargrid.net/d/curetronic-0--
https://www.modulargrid.net/d/curetronic-0---
https://www.modulargrid.net/d/curetronic-0----
https://www.modulargrid.net/d/curetronic-0-----