Shutters and wall blackened by 'the angel's share' (<i>Baudoinia compniacensis</i>), i. e. cognac alcohol vapors, Jarnac, Charente, France.
<p><a href="//commons.wikimedia.org/wiki/User:JLPC" title="User:JLPC">JLPC</a>
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CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>