Related Clues:
- Sputnik letters
- Letters from Sputnik
- Cold War unit: Abbr.
- Letters associated with early space missions
- Letters on pre-1991 maps
- Letters on 'Sputnik'
- Former pol. div.
- Any of several old Russ. states
- Belarus, once (Abbr.)
- Letters on a Soviet uniform
- Ukraine was one: Abbr.
- One-time communist land, briefly
- Letters on Soviet rockets
- Sputnik marking
- Letters on some Olympic hockey jerseys, until 1991