<p>Karte der Erzgebirgspässe/Map of the passes of the Ore Mountains
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Map bases of a Demis.nl-map (PD)
No machine-readable author provided. <a href="//commons.wikimedia.org/wiki/User:Liesel" title="User:Liesel">Liesel</a> assumed (based on copyright claims).
CC BY-SA 3.0
No machine-readable source provided. Own work assumed (based on copyright claims).