Symbol 5510 from IEC 60417 - Title/Meaning: Additional information on screen Function/description: To identify the control to display additional information for the user, for example input source, selected function, warning, time, etc.
Additional information: 
See also IEC 60417-6222
Published in: Supplement M, 1994
Own work using: iso.org/obp/graphics/grs/c31f3546-a049-41ea-bfcc-93d6c5c74823 200.png
Vectorization:  Mrmw