Informational plaque describing the anemomenter at the East Pier. Dun Laoghaire co. Dublin, Ireland.
<a href="//commons.wikimedia.org/wiki/User:Vesihiisi" title="User:Vesihiisi">Alicia Fagerving</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>