Built in 1837 by the Kingdom of Prussia.
<p>It is located on the Prussian side of the border of the former "Kreis Eupen" (now municipality Eupen) and the municipality Baelen.
It is one stone of two with the same number.
With the treaty of Versailles, the borderline lost her raison d'être.
The stones from number 158 and 193 have two different formats:
</p>
<ul><li>quadratic with a height of 2.8 ft;</li>
<li>octagonal with a height of 4.1 ft.</li></ul>
<a href="//commons.wikimedia.org/wiki/User:LeFagnard" title="User:LeFagnard">LeFagnard</a>
<span class="int-own-work" lang="en">Own work</span>