Symbol 6072-10 from IEC 60417 - Title/Meaning: Space, zero width Function/description: To identify the control to indicate the function to specify the zero gap between characters.
Additional information: 
This symbol is intended for invisible word separation and for line break control; it has no width, but its presence between two characters does not prevent increased letter spacing in justification.
This symbol corresponds to the hexadecimal code point U+200B named ZERO WIDTH SPACE of ISO/IEC 10646-1.
The graphical appearance of the outer graphical symbol element is an application of ISO 7000-2015.
Own work using: iso.org/obp/graphics/grs/b3d33a45-5e8d-4da6-8a45-0fb660949ffa 200.png
Vectorization:  Mrmw