Symbol 3111 from ISO 7000 - Title/Meaning: Ironing, maximum 150 Celsius Function/description: To indicate that ironing is allowed with the maximum sole plate temperature of 150 degrees Celsius in the ironing process.
pay attention to orientation of symbolApplication referenced in: ISO 3758:2012
Additional information: 
Graphical symbol is based on the GINETEX care labelling system.
Own work using: iso.org/obp/graphics/grs/12aba301-8bed-481c-9b0d-4af2751a6597 200.png
Vectorization:  Mrmw