Figs. 15, 16, and 17 from Nikola Tesla's <i><a href="https://en.wikisource.org/wiki/A_New_System_of_Alternating_Current_Motors_and_Transformers" class="extiw" title="s:A New System of Alternating Current Motors and Transformers">A New System of Alternating Current Motors and Transformers</a></i>.
<a href="//commons.wikimedia.org/wiki/Nikola_Tesla" title="Nikola Tesla">Nikola Tesla</a>
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