View Original: | Pneumatic caisson for Kammon railway tunnel Moji side.jpg (367x456) | |||
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Keywords: Pneumatic caisson for Kammon railway tunnel Moji side.jpg ja 関 トンネル 司方工事現場で使われた 函 en Pneumatic caisson used at Moji side construction site of Kammon railway tunnel before 1939 建築工事画報1939年1 号 関 海峡 絡隧道工事図 Ministry of Railways Japan / 鉄道 other versions Custom license marker 2015 06 01 PD-Japan-oldphoto Kanmon Railway Tunnel Uploaded with UploadWizard Caisson engineering |