Symbol 5622 from IEC 60417 - Title/Meaning: Stove, plate indicator Function/description: To identify the control for or the position of the marked cooking plate.
Additional information: 
The meaning of the graphical symbol depends on its orientation
Published in: Supplement N, 1995,3C(Central Office)192
Own work using: iso.org/obp/graphics/grs/20529124-e8ab-4c05-baf6-8e784b1c0a9f 200.png
Vectorization:  Mrmw