Monochrome photograph of a snow sleigh or ice sled powered by an engine designed by <a href="https://en.wikipedia.org/wiki/Henri_Coand%C4%83" class="extiw" title="en:Henri Coandă">Henri Coandă</a>. The sleigh was owned by Grand Duke Cyril of Russia. Its powerplant was a piston engine which drove a ducted fan or "suction turbine", the same power plant that Coanda had exhibited in 1910 on his first aircraft, later called the <a href="https://en.wikipedia.org/wiki/Coand%C4%83-1910" class="extiw" title="en:Coandă-1910">Coandă-1910</a>.
Unknown author<span style="display: none;">Unknown author</span>
1911
<p><a rel="nofollow" class="external free" href="https://books.google.co.uk/books?id=At4DAAAAMBAJ&amp;pg=PA359">https://books.google.co.uk/books?id=At4DAAAAMBAJ&amp;pg=PA359</a>
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Photograph and article appeared in <i>Popular Mechanics</i> of March 1911, no author or photographer listed.