This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Koenigsberg Map by Bering . Gedenkblatt zur sechshundertjhrigen Jubelfeier der Knigl Haupt und ResidenzStadt Knigsberg in Preuen um Nach einem Stich von Joachim Bering von Memorial page of the sixhundredth anniversary of the royal capital city and residency Knigsberg in Prussia from about According to an engraving by Joachim Bering