Symbol 5361 from IEC 60417 - Title/Meaning: Radiographic film selection, division by four and orientation Function/description: To identify controls or indicators for radiographic mode with division of the film into four, oriented as shown.
Additional information: 
This symbol is often used with symbols 5359 and 5360.
Film dimensions may be given
Minor editorial improvement agreed by the Change Request was reflected after the release on 2002-10-07
Published in: Supplement G, 1985
Own work using: iso.org/obp/graphics/grs/4b128d61-51cf-4cfb-b836-d112ad48d3cb 200.png
Vectorization:  Mrmw