Two rat guards. A <b>rat guard</b>, a steel or aluminum disc, attached to the mooring line to prevent rats from boarding.
© <a href="https://de.wikipedia.org/wiki/Benutzer:Raboe001" class="extiw" title="de:Benutzer:Raboe001">Ra Boe / Wikipedia</a>
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<span class="int-own-work" lang="en">Own work</span>