Symbol 5356 from IEC 60417 - Title/Meaning: Serial changer for single radiographic film Function/description: To indicate a reference to a subdivision of a film into several areas.
Additional information: 
This symbol is shown here with six subdivisions
Published in: Supplement G, 1985
Own work using: iso.org/obp/graphics/grs/45b29feb-9455-410c-bb85-2d56851c75d1 200.png
Vectorization:  Mrmw