Soviet postage stamp of 80 kopeks from 1938. XX anniversary of Red Army (1918-1938). <a href="https://en.wikipedia.org/wiki/1st_Cavalry_Army_(Soviet_Union)" class="extiw" title="en:1st Cavalry Army (Soviet Union)">1st Cavalry Army</a> (based on painting of M. Avilov in 1933), with incription: <i>"Comrade Stalin visits 1st Cavalry Army"</i>.
Почта СССР
<a href="//commons.wikimedia.org/wiki/1938" title="1938">1938</a>
свой скан бумажных марок