The Hellschreiber teleprinter, used by the German military for telecommunications in the 1930s. Due to its pixel-based font, it performed better than the typewriter-based technologies at the time.
The strange machine photo is a receiver. You can see the “mechanical font memory” in action here. Also, listen to the transmission sounds here.
This system is still being used by some radio amateurs.
Plotter drawing by Günther Schulz, 1985, via..
Poster for Pushwagner, a Norwegian documentary from 2011.
Carl Fernbach-Flarsheim, untitled, via.
Teleprinted portrait of Dag Hammarskjöld from 1962. Notice the overstriking in the eye. Photo by Jonn Leffmann.
The Linotype (1886) was one of the main printing techniques of the 20th century. With this machine, it was possible to produce metal lines to print, instead of doing it letter-by-letter. It didn’t use a qwerty keyboard, and there was no shift key. The keyboard was organized according to the popularity of the characters.
There is a movie about this machine, and there’s some clips from it here.
