Modern improvements in warfare extend to the digging of trenches, which is now done, where possible, with compressed air shovels, ...

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Courtesy of UC Berkeley, Bancroft Library

http://www.oac.cdlib.org/ark:/13030/ft2v19n7ng/?order=1

Title:

Modern improvements in warfare extend to the digging of trenches, which is now done, where possible, with compressed air shovels, ...

Date:

1943-07

Contributing Institution:

UC Berkeley, Bancroft Library