〔書翰〕封筒のみ7通
東京大学柏図書館
UTokyo Academic Archives Portal
〔古賀哲郎書簡封筒〕
Saga Prefectual Library
Saga Prefectural Library Database
秋山真之書簡封筒
Saga Prefectual Library
Saga Prefectural Library Database
書簡〔封筒〕
Kochi Prefectural Library
OTEPIA Kochi Library collection search
書留封筒
Kochi Prefectural Library
OTEPIA Kochi Library collection search
（書簡封筒）
Naruto University of Education
IIIF Discovery in Japan
（書簡封筒）
Naruto University of Education
IIIF Discovery in Japan
〔書簡封筒〕
Saga Prefectual Library
Saga Prefectural Library Database
〔書簡封筒〕
Saga Prefectual Library
Saga Prefectural Library Database
書簡封筒
Fukuoka City Museum
Fukuoka City Museum Collection Database
〔藤澤喜士太書翰〕
Saga Prefectual Library
Saga Prefectural Library Database
雑書類（封筒）
Kochi Prefectural Library
OTEPIA Kochi Library collection search
（書簡封筒）他
Naruto University of Education
IIIF Discovery in Japan
〔封筒端書き〕
Saga Prefectual Library
Saga Prefectural Library Database
何書簡封筒
Saga Prefectual Library
Saga Prefectural Library Database
封筒
Kochi Prefectural Library
OTEPIA Kochi Library collection search
封筒
ADEAC: A System of Digitalization and Exhibition for Archive Collections
封筒
ADEAC: A System of Digitalization and Exhibition for Archive Collections
〔封筒〕
Meiji Gakuin Historical Museum
ADEAC: A System of Digitalization and Exhibition for Archive Collections
（封筒）
Digital Archive Fukui
Digital Archive Fukui
（封筒）
Digital Archive Fukui
Digital Archive Fukui
〔封筒〕
Saga Prefectual Library
Saga Prefectural Library Database
〔封筒〕
Saga Prefectual Library
Saga Prefectural Library Database
〔封筒〕
Saga Prefectual Library
Saga Prefectural Library Database
Last Updated: 2025-11-18
Uploaded: 2025-11-19