M033 — Close safety bar of chairlift

Image source: https://commons.wikimedia.org/wiki/File:ISO_7010_M033_mandatory;_lower_safety_restraining_bar_on_ski_chairlift.svg
Author: Wikimedia Commons user Repeater-reclaim
CC0 (http://creativecommons.org/publicdomain/zero/1.0/deed.en)