Demonstration installation of jet engine 1933. GIRD. Collection of the Polytech. Russia, Moscow, BDNKh, Pavilion № 32 "Cosmos".
<a href="//commons.wikimedia.org/wiki/User:Ctac" title="User:Ctac">Stanislav Kozlovskiy</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>