Symbol 3319 from ISO 7000 - Title/Meaning: Progress toward completion, 25% complete Function/description: To indicate that the process is 25% complete.
pay attention to orientation of symbolAdditional information: 
The lines in the first quadrant may be replaced with an appropriate fill-in colour or grey scale.
Own work using: iso.org/obp/graphics/grs/69712bdc-68cb-4a2a-8e7e-701ec839cebf 200.png
Vectorization:  Mrmw