各部所掌搭載重量/Weight of Hull & Fittings 9.4.24/他重量比較表3件/WEIGHT BOOK OF BATTLE-SHIP “NAGATO”MONTHLY RETURN OF WEIGHT(No. 32)from August 28th, 1917 to March, 1920 KURE DOCK YARD
東京大学柏図書館 Kashiwa Library in the University of Tokyo, JAPAN