https://japanmaps.davidrumsey.com/luna/servlet/detail/RUMSEY~9~1~23799~100141:4-2--Dai-Nihon-Teikokukai-ryosoku-s?sort=pub_date%2Cpub_list_no_series_no_sort%2Cpub_list_no%2Cseries_no&printerFriendly=1
4:2. Dai Nihon Teikokukai ryosoku shutei zenzu. - Japanese Historical Maps
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