REMOVE

1. Oregon
2. Isaacs, John D.
3. Bascom
4. 1946

WHAT

1. Chart Atlas (1)
2. Chart Map (1)
3. Nautical charts (1)
4. Navigation (1)

WHERE

1. Don River Delta (Russia) (1)
2. Russia (1)
3. Tanais (Russia) (1)

WHO

1. Bellin, Jacques Nicolas, … (1)
2. J. Arrivet (1)
3. J.N. Bellin (1)

WHEN

1. 1764 (1)