File:Flag of Germany (1867–1918).svg - Wikimedia Commons

Category:SVG flag maps of Germany - Wikimedia Commons

Category:SVG flag maps of Germany - Wikimedia Commons

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File:Flag of the Russian Soviet Federative Socialist Republic

File:Flag of the German Confederation (war).svg - Wikimedia Commons

File:Flag of Ukrainian People's Republic of the Soviets.svg

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Category:SVG flag maps of Germany - Wikimedia Commons

File:Flag-map of the Russian Empire.svg - Wikimedia Commons