https://www.digital.archives.go.jp/item/en/3579110

[Items] "福岡北九州公有水面埋立・出来高平面図=若松埠頭平面図", 昭62運輸00206100-01800, National Archives of Japan Digital Archive, https://www.digital.archives.go.jp/item/en/3579110accessed 2026-09-03