Symbol 6083 from IEC 60417 - Title/Meaning: Superselect, secondary 
Function/description: To identify the control to latch to a group which is determined by the identity of the currently active group (especially in an environment which uses the Superselect function).
Own work using: iso.org/obp/graphics/grs/8a37663d-b96d-4e1c-80fa-9964c0492d52 200.png
Vectorization:  Mrmw