Stamping station at the Josephskreuz for the Harzer Wandernadel. The stamp inside the box can be pressed into a hiking booklet to show that you were there. For certain numbers of different stamps there is an award that you can put on your clothes or bag.
<a href="//commons.wikimedia.org/wiki/User:PantheraLeo1359531" title="User:PantheraLeo1359531">PantheraLeo1359531</a>
CC BY 4.0
<span class="int-own-work" lang="en">Own work</span>