Symbol 6086 from IEC 60417 - Title/Meaning: Switch to specific group, general Function/description: To identify the control of the group to be switched to.
Additional information: 
This is a generic symbol.
The letter symbol “A” is to be replaced by a typical character, for example, a group containing the Greek script is indicated by a capital Omega.
Own work using: iso.org/obp/graphics/grs/36e12ad9-9c54-4821-b71c-79f911966488 200.png
Vectorization:  Mrmw