Schuko plug with burn marks on the pins, also note discolored insulation of the blue wire, white residue on the plug body, and blue wire partially melted into the plug's body
<a href="//commons.wikimedia.org/wiki/User:Phiarc" title="User:Phiarc">Phiarc</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>