Stamp of the USSR. 200th anniversary of the USSR Academy of Sciences. Portrait of <a href="https://en.wikipedia.org/wiki/Mikhail_Lomonosov" class="extiw" title="en:Mikhail Lomonosov">Mikhail Lomonosov</a> painted by Leonty Miropolsky; building of the USSR Academy of Sciences in Leningrad on the background. 3 copecks, brown.
Post of Soviet Union
<a rel="nofollow" class="external free" href="http://russianstamps.ru/">http://russianstamps.ru/</a>