Symbol 2595A from ISO 7000 - Title/Meaning: Trailer towing mode; two-axle wagon Function/description: To identify the control which changes the transmission mode for towing a trailer. To indicate the operational status of trailer towing mode. To indicate that a two-axle wagon is connected to the tractor.
pay attention to orientation of symbolApplication referenced in: ISO 2575
Additional information: 
This symbol may be used with a numeric indicator of the number of wagons connected to the tractor or of the numerical order of this wagon among those connected to the tractor
Symbol revised by ISO/TC 145/SC 3 on 2014-07-28
Own work using: iso.org/obp/graphics/grs/3926aca4-7fb9-45e3-81a4-00bde49a9410 200.png
Vectorization:  Mrmw