Charts. Avatcha Bay and approaches, north Pacific [from survey] by U. S. ship Vincennes, and from English and Russian authorities, July, 1855, scale 1° lat. = 14.4 in.; with Enlarged plan of Avatcha Bay, scale naut. m. = 1 in.; and Petropavlovsk Harbor, from Russian survey in 1896, scale 1000 yds.=3.95 in.; chart 54.
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Avatcha Bay and approaches, north Pacific [from survey] by U. S. ship Vincennes, and from English and Russian authorities, July, 1855, scale 1° lat. = 14.4 in.; with Enlarged plan of Avatcha Bay, scale naut. m. = 1 in.; and Petropavlovsk Harbor, from Russian survey in 1896, scale 1000 yds.=3.95 in.; chart 54.
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Charts. Avatcha Bay and approaches, north Pacific [from survey] by U. S. ship Vincennes, and from English and Russian authorities, July, 1855, scale 1° lat. = 14.4 in.; with Enlarged plan of Avatcha Bay, scale naut. m. = 1 in.; and Petropavlovsk Harbor, from Russian survey in 1896, scale 1000 yds.=3.95 in.; chart 54.