225th anniversary of the world's first hot air balloon flight by Russian inventor Kriakutny. Soviet post stamp. The historical veracity of the flight is highly disputed.
Unknown author<span style="display: none;">Unknown author</span>
1956
<a rel="nofollow" class="external autonumber" href="http://images.yandex.ru/yandsearch?p=4&amp;text=%D0%BA%D1%80%D1%8F%D0%BA%D1%83%D1%82%D0%BD%D1%8B%D0%B9&amp;img_url=http%3A%2F%2Fwww.museum.ru%2FimgB.asp%3F24522&amp;rpt=simage">[1]</a>