REMOVE

1. Africa, West--Maps, Topograp …
2. Series (Standard map series …
3. Series (Standard map series …
4. Series (Standard map series …
5. W 20º--E 30º/N 30º--S 5º …
6. W 20º--E 30º/N 30º--S 5º …

WHAT

1. Africa, West--Index maps (1)
2. Africa, West--Maps, Topog … (1)
3. Index to maps of West Afr … (1)
4. Series (Standard map seri … (1)

WHERE

1. Africa (1)
2. Cameroon; Central African … (1)
3. W 20º--E 30º/N 30º--S 5º (1)

WHO

1. United States. Army Map S … (1)

WHEN

1. 1955- (1)