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Scarce sea chart of part of the west coast of Kyushu, providing a fascinating insight into U.S. efforts to produce maps of Japan during World War II.

The map, which was published by the Navy in September 1944, shows an area on the west coast of Kyushu, which would have been of particular interest in the advent of an U.S. invasion. By this point in the war, Allied forces had begun the offensive in France, and strategic focus was shifting to the Japanese homeland.

The survey on which this map is based was produced by the Japanese Navy in 1923. The U.S. Navy had begun producing charts of Japanese waters based on those surveys at least in the late 1930s.