Symbol 3436 from ISO 7000 - Title/Meaning: Manual transmission mode Function/description: To indicate that the transmission is functioning in manual operating mode whereby the transmission gear is selected by the operator and does not change until the operator selects a different gear.
pay attention to orientation of symbolAdditional information: 
Symbol shall be used only when both manual and automatic transmission modes are available on the same machine or when it is important that the operator understands that only a manual transmission is available.
Own work using: iso.org/obp/graphics/grs/570d35c4-ba7b-45c1-8b40-ff763dbfa787 200.png
Vectorization:  Mrmw