秋田県真木鉱山金堀沢全図
Waseda University Library
ARC Early Japanese Book Portal Database
清国政情視察復命書
Waseda University Library
ARC Early Japanese Book Portal Database
秋田県下鉱山開発請負願秋田県宛
Waseda University Library
ARC Early Japanese Book Portal Database
秋田県鉱山開発ニ関スル意見書
Waseda University Library
ARC Early Japanese Book Portal Database
（秋田県院内鉱山奉職希望二付書簡）
Digital Archive Fukui
Digital Archive Fukui
秋山真之書簡
Saga Prefectual Library
Saga Prefectural Library Database
秋山真之葉書
Saga Prefectual Library
Saga Prefectural Library Database
秋山真之葉書
Saga Prefectual Library
Saga Prefectural Library Database
秋山真之葉書
Saga Prefectual Library
Saga Prefectural Library Database
秋山真之書簡
Saga Prefectual Library
Saga Prefectural Library Database
秋山真之書簡
Saga Prefectual Library
Saga Prefectural Library Database
鉱山戦場従軍 飯盛銅山視察記 (上・中・下)
神戸大学附属図書館
Kobe University Library Digital Archive Newspaper Clippings Collection
〔東大内田教授ちかく来県視察〕
Wakayama Prefectural Archives
Wakayama Historical Archives
〔東大内田教授ちかく来県視察〕
Wakayama Prefectural Archives
Wakayama Historical Archives
秋田木地山こけし
Town of Oketo Library, Hokkaido
ADEAC: A System of Digitalization and Exhibition for Archive Collections
九州鉱山の必勝増産現場視察記 (下)
神戸大学附属図書館
Kobe University Library Digital Archive Newspaper Clippings Collection
真木山蔵書印
National Institute of Japanese Literature
Collectors'Seals Database
〔新県庁舎敷地を内田博士が視察〕
Wakayama Prefectural Archives
Wakayama Historical Archives
〔新県庁舎敷地を内田博士が視察〕
Wakayama Prefectural Archives
Wakayama Historical Archives
「隅田川八景」 「真乳山秋月」
British Museum
ARC Ukiyo-e Portal Database
密山炭鉱視察記 : 対日寄与へ重大使命 : 増産へ綜合能力発揮
神戸大学附属図書館
Kobe University Library Digital Archive Newspaper Clippings Collection
絵葉書｢錦帯橋･秋芳洞｣山口県･秋芳洞 千町田
Fukuoka City Museum
Fukuoka City Museum Collection Database
北支那視察學生ニ関スル複命書送付ノ件
The University of Tokyo Archives
UTokyo Academic Archives Portal
伊奈県鉄岳ノ鉱山復興ヲ請フノ書柳原前光宛
Waseda University Library
ARC Early Japanese Book Portal Database
Uploaded: 2026-03-26