<a href="https://en.wikipedia.org/wiki/Macro_photography" class="extiw" title="en:Macro photography">Macro photography</a> of a thin graphite lead through the tip of a (ratchet-based) <a href="https://en.wikipedia.org/wiki/Mechanical_pencil" class="extiw" title="en:Mechanical pencil">mechanical pencil</a>.
<a rel="nofollow" class="external text" href="mailto:bob.commons@gmail.com">Bob Ionescu</a>
Attribution
self-made by author