What means
This stroke belongs inside a larger letter.
HP's January 1977 manual lists the set as an option for 2641A/2645A terminals. A 2021 Unicode proposal traces the pieces to HP terminal ROM chips that stored letter shapes for large headlines. This one is a short upper stroke.
Don't confuse it with
4Questions people ask
1Why does it show as a box on my screen?
It is a font-support issue. Unicode 16.0 recommends a suitable font for this symbol set; without , an app may show a placeholder while the text still contains the character.
How to type
𜸣\1CE23Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.
