Gearbox (Autocar Handbook, 13th ed, 1935).jpg
<a href="//commons.wikimedia.org/wiki/User:Andy_Dingley" title="User:Andy Dingley">Andy Dingley</a> (scanner)
circa. 1935
Scan from <cite class="book" style="font-style:normal"><a href="https://en.wikipedia.org/wiki/The_Autocar" class="extiw" title="en:The Autocar"> <i>The Autocar</i></a> (Thirteenth edition, circa 1935)      <i> Autocar Handbook</i>, <a href="https://en.wikipedia.org/wiki/en:London" class="extiw" title="w:en:London"><span title="capital and largest city of the United Kingdom">London</span></a>:  Iliffe &amp; Sons.  <small></small></cite>