3 ms·

They did not allowed lower cases which helped alot. "L" was easily distinguished from "I" |_, so was "B": |3 from 8.

• dsfyu404ed 9y ago
  This. Pick a good font and the problem goes away.
  • cma 9y ago
    And then you have to enforce the font in all written communications and emails that mention things by serial.
  • rleigh 9y ago
    You also need to allow for legibility in the face of damage, if that could lead to ambiguity.