A rabbit-hole that exerts a strong pull, but so far I have been able to resist it: the history of techniques to display alphanumeric characters on cathode ray tubes.

This picture may very well be from the first fully electronic method proposed, invented at the Automatic Telephone and Electric Company in Liverpool in 1947. All glyphs are generated from sine-wave-like curves, truncated in different ways.

#vectorgraphics #SystemsThatMatter