Sign in an old tram of Copenhagen, KS 470 from 1945, at Sporvejsmuseet Skjoldenæsholm in Denmark. It tells that passengers leaving the tram should wait until the tram stops and then hold on with their left hand.
<a href="//commons.wikimedia.org/wiki/User:Dannebrog_Spy" title="User:Dannebrog Spy">Leif Jørgensen</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>