Rear-axle drive for motor vehicles, first image
<a href="https://en.wikipedia.org/wiki/Edmund_Rumpler" class="extiw" title="w:Edmund Rumpler">Edmund Rumpler</a>
1921
<a rel="nofollow" class="external free" href="http://www.google.com/patents/US1514862">http://www.google.com/patents/US1514862</a>