Old Russian letters?

• One of 15 on old globes, for short
• Ukr., until 1991, e.g
• Latvia, once: Abbr.
• 40 Across was one: Abbr.
• Armenia or Azerbaijan, once: Abbr
• Outdated geopolitical inits
• Old union member: Abbr.
• Old geog. inits
• Russ. federation member

Wikipedia Word definitions in Wikipedia
SSR may refer to: