Crankshaftt of a <a href="https://en.wikipedia.org/wiki/Bugatti_U-16" class="extiw" title="en:Bugatti U-16">Bugatti U-16</a> aircraft engine.
Unknown. US documentation of the imported license-built <a href="https://en.wikipedia.org/wiki/King-Bugatti" class="extiw" title="en:King-Bugatti">en:King-Bugatti</a> engine
circa 1918 <div style="display: none;">date QS:P,+1918-00-00T00:00:00Z/9,P1480,Q5727902</div>
Crop of <a href="//commons.wikimedia.org/wiki/File:Longitudinal_section,_Bugatti_U-16.jpg" title="File:Longitudinal section, Bugatti U-16.jpg">File:Longitudinal section, Bugatti U-16.jpg</a>