Stop sign used at airports, airfields and aerodromes. This type is used in Germany (and possibly other countries).
'<i><a href="//commons.wikimedia.org/wiki/User:Fry1989" title="User:Fry1989">Fry1989</a><b> <sup>'</sup></b></i>
This <a href="https://en.wikipedia.org/wiki/vector_image" class="extiw" title="w:vector image">vector image</a> includes elements that have been taken or adapted from this file: