USSR miniature sheet, 1958, <b>A Centennary of the Russian postage stamp</b>. Mint.
Post of the Soviet Union, USSR Ministry of Communications / Министерство связи СССР
1958
<a rel="nofollow" class="external free" href="http://kolekzioner.net/modules/smartsection/item.php?itemid=223">http://kolekzioner.net/modules/smartsection/item.php?itemid=223</a>