Charts. Sado Island, northwest coast of Honshu, Japan, from Japanese survey in 1888, scale naut. m. =0.88 in.; with insets, Aikawa Bay, scale naut. in. = 2 in.; Ogi Bay, south end of Sado I., from Japanese survey in 1879, scale naut. m. =2.84 in.; chart 1941.

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