Symbol 5409-1985 from IEC 60417 - Title/Meaning: Electronic image, inverted top-to-bottom Function/description: To indicate a reference to a top-to-bottom image inversion.
Additional information: 
Symbol to use with symbols 5407, 5408 and 5410
Published in: Supplement G, 1985
Own work using: iso.org/obp/graphics/grs/ab5f56aa-06a9-4dab-a8b6-263fdcb92c62 200.png
Vectorization:  Mrmw