Atlantic Wall, IJmuiden, M.K.B. Heerenduin (Coastal Battery Heerenduin), W.N. 81 (Widerstandsnest 81), fire control post, type M 178
<a href="//commons.wikimedia.org/wiki/User:Janericloebe" title="User:Janericloebe">Janericloebe</a>
2010-04
<span class="int-own-work" lang="en">Own work</span>