Dillingen (Saar), Dillinger Hüttenwerke, Zentralkokerei ZKS, Z 1 (KM 19915/1984), 01.10.2011
<a href="//commons.wikimedia.org/wiki/User:Joachim_Lutz" title="User:Joachim Lutz">Joachim Lutz</a>
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<span class="int-own-work" lang="en">Own work</span>