Attribution 4.0 truetrue English Last official flag of the city of Königsberg, used from the 1800s onwards until 1906. author name string: Sandjaar Wikimedia...
DescriptionFlag of Königsberg (1800s–1906).svg English: Flag of Königsberg from the 1800s–1906 Date 27 February 2023 Source Own work based on: https://www...
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