In 1974, ANSI published the Standard character set for handprinting (ANSI X3.45-1974). It proposed a uniform method of #handwriting acceptable to optical character recognition technology of the day. It included only upper case letters.
It had some quirks: letter O has a tail at the top, like Q rotated 90 degrees. S has a little tail at the bottom left. U has a square base. Z has a full-width bar at mid level.
I wonder if anyone ever used it?
@scruss I find it interesting they went for the O like that instead of slashed zero to differentiate
https://en.wikipedia.org/wiki/Slashed_zero