Československá poštovní známka, 10-haléřová známka s motivem Hradčan (Praha), neperforovaná.
<bdi><a href="https://en.wikipedia.org/wiki/en:Alphonse_Mucha" class="extiw" title="w:en:Alphonse Mucha"><span title="Czechoslovak photographer, painter and illustrator (1860-1939)">Alphonse Mucha</span></a>
</bdi>
Self-scanned