Atlasgeo.net: Germany - Animated GIF image.
Flags of the World: East Germany - National, subnational, military, and political flags.
Flags of the World: Germany - National, subnational, historical, and political flags.
Theodora.com: Flag of Berlin - Images in several sizes.
Theodora.com: Flag of Germany - Images in several sizes.
Theodora.com: Schleswig-Holstein Flag - Images in several sizes.
World Flag Database: Germany - National and state flags, ensigns, and country facts.