What means
It marks an upper-right branch inside a large letter.
The first HP 2640A appeared in 1974; that terminal line also offered a built-in set of pieces for drawing headlines. Each large character used a 3×3 grid of smaller character cells.
This piece joins the other cells in that grid. As Unicode text, it can sit in a plain-text file, but display depends on a font that includes it; alone, it does not enlarge ordinary letters.
Don't confuse it with
4Questions people ask
1Why does look like a box?
Your font may not include this character. A font with support for it is needed to display its shape.
How to type
𜸦\1CE26Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.
