Elevated monorail by Ippolit W. Romanow  in the city of Gatchina
Unknown photographer
<a rel="nofollow" class="external text" href="http://a-dedushkin.livejournal.com/98063.html?thread=9948431">Подвесная дорога И.Романова</a> and <a rel="nofollow" class="external text" href="http://www.darkroastedblend.com/2009/04/one-track-wonders-early-monorails.html">One Track Wonders: Early Monorails</a>