Symbol 3714 from ISO 7000 - Title/Meaning: Semi-trailer (side view) Function/description: To identify a fifth-wheel semi-trailer from a side (profile) view.
Additional information: 
This symbol is applicable to towed trailers requiring a fifth-wheel coupling device
May be used as a building block to develop other symbols. - Up to now the symbol was published as unregistered informative symbol within ISO 2575 without symbol description. For the new edition of ISO 2575 the symbol description and registration shall be added.
Own work using: iso.org/obp/graphics/grs/dd668c03-ca54-497d-8f7b-7442242e0bed 200.png
Vectorization:  Mrmw