| Answer | Crossword Clue |
|---|---|
| SSR | Estonia, once: Abbr. |
| SSR | Estonia once: abbr. |
| SSR | Estonia, once (abbr.) |
| SSRS | Estonia et al., once: Abbr. |
| SSRS | Estonia and Latvia, once: Abbr. |
| SSRS | Latvia and Estonia, once: Abbr. |
| SSRS | Estonia and Armenia, once: Abbr. |
| SSR | Lithuania or Estonia, once: Abbr. |
| SSRS | Estonia and Latvia, once (abbr.) |
| SSR | Estonia, e.g., once: Abbr. |
