REMOVE

1. Gulf of Finland

WHAT

1. Atlas Map (3)
2. National Atlas (3)
3. Chart Atlas (2)
4. Chart Map (2)
5. Nautical Charts (2)

WHERE

1. Russia (4)
2. Baltic Sea (2)
3. River Neva (2)
4. Saint Petersburg (Russia) (2)

WHO

1. Academie der Wissenschaff … (3)
2. Academy of Sciences, St. … (3)
3. Akademiia nauk SSSR (3)
4. Kayserl. Academie der Wis … (3)
5. L'Isle, Joseph Nicolas de (3)

WHEN

1. 1745 (3)
2. 1741 (2)
3. 1650 (1)
4. 1735 (1)
5. 1764 (1)