Stamps pair of the North German Confederation, 1 Groschen issue 1869, cancelled at <a href="//commons.wikimedia.org/wiki/Category:Dortmund" title="Category:Dortmund">DORTMUND</a> (North Rhine-Westphalia) in 1871.
<a href="//commons.wikimedia.org/wiki/User:Jacquesverlaeken" title="User:Jacquesverlaeken">Jacquesverlaeken</a>
1871-12-09
<span class="int-own-work" lang="en">Own work</span>, 2013-08-20 12:02:17