REMOVE

1. Historical
2. Arctic

WHAT

1. Atlas Map (6)
2. Exploration (5)
3. Historical Atlas (5)
4. Physical (1)

WHERE

1. Arctic Regions (1)
2. Asia (1)

WHO

1. Glavnoe upravlenie geodez … (5)
2. Martova, K. B. (5)
3. Soviet Union. Glavnoe upr … (5)
4. Bartholomew, J. G. (John … (1)
5. John Bartholomew and Son (1)

WHEN

1. 1959 (5)
2. 1922 (1)