Engineering Laboratory
Yuzuru Hiraga Digital Archive
SKETCH BOOK Volume 1. from 13|7|33 to 25|8|33 at Yokosuka Naval Shipyard
Yuzuru Hiraga Digital Archive
〔軍艦ノート〕
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NOTE ON THE PRACTICE
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NOTES ON THE TORPEDO-BOATS-DESTROYEARS and Torpedo Boats
Yuzuru Hiraga Digital Archive
NOTES Volume II.
Yuzuru Hiraga Digital Archive
Specifications for building Triplescrew protected Cruiser of 7350 tons for the United States Navy
Yuzuru Hiraga Digital Archive
Vol. III Applied Mechanics on Balancing, Frictions, Stresses, Combustions, on Hydraulics..
Yuzuru Hiraga Digital Archive
〔軍艦ノート（駆逐艦〔春雨・村雨・朝霧・速鳥〕・水雷艇〔雁・蒼鷹・鴿・燕・雲雀・雉・鷺・鶉・鴎〕）〕
Yuzuru Hiraga Digital Archive
SKETCH BOOK Volume 3. from 25|8|33 to 5|10|33 at Yokosuka Naval Shipyard
Yuzuru Hiraga Digital Archive
〔Ex.（東京帝国大学工学部船舶工学教室用箋）〕
Yuzuru Hiraga Digital Archive
〔計算メモ（東京帝国大学工学部船舶工学教室用箋）〕
Yuzuru Hiraga Digital Archive
〔写真（壁に掛かった平賀の遺影）〕
Yuzuru Hiraga Digital Archive
POST OFFICE TELEGRAPHS(Ju 21 07)
Yuzuru Hiraga Digital Archive
〔シカゴ発1921年1月29日付平賀宛河東葉書〕
Yuzuru Hiraga Digital Archive
Specifications for H. I. J. M. S. "Chihaya"
Yuzuru Hiraga Digital Archive
〔Specifications（新高・龍田・橋立・高砂・敷島・三笠・八重山・朝日・春雨・村雨・速鳥・秋津洲・須磨・明石・千早・吉野・宇治・鹿島・香取他）〕
Yuzuru Hiraga Digital Archive
〔Extract from the specification for a 3rd class protected Cruiser of 3420 Tons in Displacement〕
Yuzuru Hiraga Digital Archive
〔ノート（水雷部兵器定備明細簿／"YASHIMA" Standing, Running Riggings and Blocks.／八島需用品／八島定備品明細簿／八島艦営需品定額表（消耗品）〕
Yuzuru Hiraga Digital Archive
POCKET DIARY FOR 1938
Yuzuru Hiraga Digital Archive
