There’s a video of this in action!
For all my music stuff AND my once-upon-a-time strange typewriter / portable word processor / pocket computer collecting, I never saw or heard of anything like this.
I love how the notes go up and down: it’s a lever on the left side with a satisfying “click” between each note as you adjust it.
So precise – AND it uses a standard ink ribbon.
from Facebook https://trib.al/CKtwOOK