Manhole cover in Paris, inside the Hotel de Ville (Mairie de Paris), 4th arrond. (2015). Text: Geneste Herscher &amp; Cie, Ingenieurs Constructeurs à Paris
<a href="//commons.wikimedia.org/wiki/User:Vysotsky" title="User:Vysotsky">Vysotsky</a>
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<span class="int-own-work" lang="en">Own work</span>