25 heller Czechoslovak coin, design of 1953.
<ul><li>photograph: <a href="//commons.wikimedia.org/wiki/User:Arvedui89" title="User:Arvedui89">Aʀvєδuι</a></li>
<li>coin design: never revealed</li></ul>
<span class="int-own-work" lang="en">Own work</span>