| Flag of Azerbaijani Soviet Socialist Republic | |
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| Adopted | (unknown) |
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| Designed by | (unknown) |
| Proportions | {{{proportions}}} |
The flag of Azerbaijan SSR is the Soviet Union flag with a blue line at the bottom.
 Republics of the Soviet Union |
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| Principal Republics |
| Armenian SSR ● Azerbaijan SSR ● Byelorussian SSR ● Estonian SSR ● Georgian SSR
Kazakh SSR ● Kirghiz SSR ● Latvian SSR ('40-'53, '53-'91) ● Lithuanian SSR ('40-'53, '53-'89) Moldavian SSR ● Russia SSR ● Tajik SSR ● Turkmen SSR ● Ukrainian SSR ● Uzbek SSR |
| Short-Lived Republics: Karelo-Finnish SSR ● Transcaucasian SSR |