東京大学「デジタルアーカイブズ構築事業」により電子化（2022年度）
「足尾銅山古河鑛業所工作課測量製圖掛」の押印あり
袋 : マグドーガル炉之圖 九[?][?]入
壱号 : The Wright Roasting Furnace, Patented July 19. 1899, Mountain Copper Co, L'td, Kese[?]ce R. Cal., Scale 3/4"=1 ft, No. 55
二号 : The Mountain Copper Co Ltd, Details of Water Circulation thus Column of Arms, Wright Roasting Furnaces Pat July 19 1899, Scale 1 inch = 1 foot, No. 57
三号 : Gear Wheel and Column Bearings for The Wright Roasting Furnace (Pat July 19. 1899), Scale 1 1/2" = 1 ft, The Mountain Copper C, Ltd, [?]eswicle [Keswick?] Cal, No. 59A
四号 : Ore Feeder for Wright Roasting Furnaces, Scale 1 1/2" = 1 Foot. All [Sheling] parts are [shacteel] No. 58
五号 : The Wright Roasting Furnace, Pat July 19 1899, Details of Shaft and Columns, Mountain Copper Co L'ted [?]eswicle [Keswick?] Cal, Scale 1 1/2" = 1 ft, 57A
六号 : The Mountain Copper Co Led [Ltd], Detail of Platform for The Wright Roasting Furnace Pat July 19. 1899, Scale 1 inch = 1 foot, No 61
七号 : Foundation Plan for The Wright Roasting Furnaces Pat July 19 1899, No. 55A
八号 : Shell of Wright Furnace, Pat July 19 1899, Scale 3/4" = 1 foot, Jume [June?] 7 1901, The Mountain Copper Co Ltd, Kesweell [Keswick?] Cal, No. 56
九号 : [The Mountain Copper Co Ltd (画像は折皺で判読不能)], Details of Flue Connections And Dust Chamber, The Wright Roasting Furnace Pat Jula [July?], Scale 3/16 = 1 foot, （裏面）[此]据付図ノ模型ハ作ラヌ事ニ極テアルカラ説明ハ畧ス 足尾デノ据付ハ[此]レトハ丸デ違フテ居ル