The gasoline engine constructed by <a href="https://en.wikipedia.org/wiki/Ognjeslav_Kostovi%C4%87_Stepanovi%C4%87" class="extiw" title="w:Ognjeslav Kostović Stepanović">Ognjeslav Kostović</a>. Russia. 1883. <br>The <a href="https://en.wikipedia.org/wiki/Central_Air_Force_Museum" class="extiw" title="w:Central Air Force Museum">Central Air Force Museum</a> in Monino, Russia. <br>The engine was intended for the unfinished dirigible <i>Rossiya</i> (was built from 1882 to 1890).
<a href="//commons.wikimedia.org/wiki/User:Dmitry_Ivanov" title="User:Dmitry Ivanov">Dmitry Ivanov</a>.
<span class="int-own-work" lang="en">Own work</span>