| Answer | Crossword Clue |
|---|---|
| SSR | Lithuania, once: Abbr. |
| SSR | Latvia or Lithuania, once (abbr.) |
| SSRS | Latvia and Lithuania, once: Abbr. |
| SSRS | Lithuania and Latvia, once: Abbr. |
| SSRS | Georgia and Lithuania, once: Abbr. |
| SSR | Lithuania or Estonia, once: Abbr. |
| SSR | Lithuania or Latvia, once (Abbr.) |
