【主要参考資料】
写真 日本の軍艦 第6巻 重巡Ⅱ ー 雑誌「丸」編集部 編
https://ja.wikipedia.org/wiki/%E9%AB%98%E9%9B%84%E5%9E%8B%E9%87%8D%E5%B7%A1%E6%B4%8B%E8%89%A6
【画像出典】
a By Presumed official Royal Navy photographer, Trusler, C (Lt)? Likely from the collections of Shizuo Fukui. - https://japanese-warship.com/heavy/heavy/takao-class, likely from Shizuo Fukui's collection at the Kure Maritime Museum., Public Domain, https://commons.wikimedia.org/w/index.php?curid=142001749
By Unknown author - www.wwii-collectibles.com, Public Domain, https://commons.wikimedia.org/w/index.php?curid=1802005
By Unknown author - "Photo book: Naval Vessel of the Imperial Japanese Navy, Vol.6 Heavy cruisers II", Kojin-sha(Japan), 1989. page 20., Public Domain, https://commons.wikimedia.org/w/index.php?curid=7346675
By Kure Naval Arsenal Shipbuilding unit - Kure Maritime Museum, (edited by Kazushige Todaka), Japanese Naval Warship Photo Album: Battleships and Battle Cruisers, p. 106.; also published in Shizuo Fukui, Nihon No Gunkan: Shashinshu, published 1970, p.15, Public Domain, https://commons.wikimedia.org/w/index.php?curid=11025399
By Unknown, maybe the Imperial Japanese Navy official photo. - Kure Maritime Museum editing Japanese Naval Warship Photo Album, Cruisers." Diamond Co., 2005., Public Domain, https://commons.wikimedia.org/w/index.php?curid=7346660
By Unknown, maybe the Imperial Japanese Navy official photo. - Kure Maritime Museum editing Japanese Naval Warship Photo Album, Cruisers." Diamond Co., 2005; also published in Shizuo Fukui, Nihon No Gunkan: Shashinshu, published 1970, p.64, Public Domain, https://commons.wikimedia.org/w/index.php?curid=7346688
By Marius Bar - [1], Public Domain, https://commons.wikimedia.org/w/index.php?curid=9509908
By Detroit Publishing Co., publisher. Gift to LOC; State Historical Society of Colorado; 1949. - This image is available from the United States Library of Congress's Prints and Photographs divisionunder the digital ID det.4a16116.This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing., Public Domain, https://commons.wikimedia.org/w/index.php?curid=10502541
By The Air and Sea Co. - The Air and Sea, vol.2, no.6, Public Domain, https://commons.wikimedia.org/w/index.php?curid=2159837
By Imperial Japanese Navy - Imperial Japanese Navy via history.navy.mil, Public Domain, https://commons.wikimedia.org/w/index.php?curid=15001399 15120612
By https://www.lib.u-tokyo.ac.jp/ja/library/contents/archives-top/reuse, CC BY 4.0, https://commons.wikimedia.org/w/index.php?curid=94485328
By The original photograph came from Rear Admiral Samuel Eliot Morison's World War II history project working files. - Photo #: NH 97727, Public Domain, https://commons.wikimedia.org/w/index.php?curid=2480773
By Japanese Cruisers of the Pacific War (1997) by Eric Lacroix and Linton Wells (publ. Naval Institute Press), Public Domain, https://commons.wikimedia.org/w/index.php?curid=1456473
By Trusler, C (Lt) - This photograph A 30701 comes from the collections of the Imperial War Museums., Public Domain, https://commons.wikimedia.org/w/index.php?curid=5144785
By Bain News Service, New York - This image is available from the United States Library of Congress's Prints and Photographs divisionunder the digital ID ggbain.26685.This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing., Public Domain, https://commons.wikimedia.org/w/index.php?curid=5842647
By Presumed official USN or IJN photographer - Naval History and Heritage Command, Public Domain, https://commons.wikimedia.org/w/index.php?curid=142009394
By Unknown author - 写真日本の軍艦第5巻p197。, Public Domain, https://commons.wikimedia.org/w/index.php?curid=5957551
By Japanese navy - http://articleimage.nicoblomaga.jp/image/160/2013/1/8/18db6783700a90c9dd531bf8ec9ea6262aea2a541384421877.jpg, Public Domain, https://commons.wikimedia.org/w/index.php?curid=31663758
By Presumed official IJN photographer, likely from the collections of Shizuo Fukui. - https://japanese-warship.com/heavy/heavy/takao-class, likely from Shizuo Fukui's collection at the Kure Maritime Museum., Public Domain, https://commons.wikimedia.org/w/index.php?curid=142001741
By 海と空社 - 海軍雑誌 『空と海』、第二巻第六号(The Air and Sea, vol.2, no.6), Public Domain, https://commons.wikimedia.org/w/index.php?curid=2159842
By The Air and Sea Co. - The Air and Sea, vol.2, no.6, Public Domain, https://commons.wikimedia.org/w/index.php?curid=2159821
https://commons.wikimedia.org/w/index.php?curid=2159830
By Unknown author - 『世界の艦船-日本軍艦史』 288ページ。(Japanese magazine "Ships of the world - Ships of the Imperial Japanese Navy", p288.), Public Domain, https://commons.wikimedia.org/w/index.php?curid=6557921