Symbol 5789 from IEC 60417 - Title/Meaning: Displayed image, reduced Function/description: To identify the control or the indicator to show the displayed image on the screen in reduced size.
Additional information: 
Published in: 3C/1356/CDV,3C/1414/RVC
Own work using: iso.org/obp/graphics/grs/84b3bf6c-5d79-4004-b87a-248bcbd14762 200.png
Vectorization:  Mrmw