Symbol 1143 from ISO 7000 - Title/Meaning: Telescoping light mast 
Function/description: To identify the control for operation of the telescoping light mast. To indicate the operational status of the telescoping light mast.
Own work using: iso.org/obp/graphics/grs/c227a06c-0f71-4abe-840d-d42e89b5ac3c 200.png
Vectorization:  Mrmw