Keywords: Construction work of service bore of Kammon railway tunnel.jpg ja 関 トンネル試掘 道の掘削 業 en Construction work of service bore of Kammon railway tunnel before 1943 海底死闘六年関 トンネル Ministry of Railways Japan / 鉄道 other versions Custom license marker 2015 06 01 PD-Japan-oldphoto Kanmon Railway Tunnel Uploaded with UploadWizard |