Barbed-wire doors in French trenches

Title (Dublin Core): Barbed-wire doors in French trenches
Subject (Dublin Core): en Technology; en Trenches and fortifications
Article Title and/or Image Caption (Dublin Core): Caption: "French trench equipped with barbed wire doors palced 100 yards apart. If the enemy gets into the trench the doors are locked to impede progress".; Article title: Curious makeshifts of war seen at random
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): World War I
Date Issued (Dublin Core): 1915-12
Is Part Of (Dublin Core): Popular Mechanics, v. 24, n. 6, 1915
pages (Bibliographic Ontology): 861
Rights (Dublin Core): Public domain (Google digitized)
Source (Dublin Core): Google Books
Archived by (Dublin Core): Iacopo Tonon; Davide Donà (supervisor)
Spatial Coverage (Dublin Core): French Third Republic