Grand Coulee Dam: Columbia Basin Project and its Headquarters Spokane
45.5cm x 60.5cm (sheet size), 23cm x 10cm (folded size). Colour map.
The map shows the dam prior to its completion in 1942. There is a note stating that nearly 300,000 people visited the dam in 1939, so the date of the map would be between 1940 and 1942.
Very minor rubbing to wrappers. Vertical fold (as issued). Very Good Condition.
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