Related Clues:

• $60 avenue in Monopoly
• Sea at one end of the Kiel Canal
• Estonian, e.g.
• Sea in northern Europe
• Like Old Prussian
• $60 ''Monopoly'' buy
• Cheap Monopoly avenue
• Sea north of Poland
• Latvian, for one
• Avenue before the Income Tax square, in Monopoly
• Northern sea
• European sea
• Northern European sea
• Almost land-locked sea of NE Europe
• Almost land-locked sea of Scandinavia