Unexploded projectile sign

Title (Dublin Core): Unexploded projectile sign
Subject (Dublin Core): en Imagined technology; en Other
Article Title and/or Image Caption (Dublin Core): Caption: "The sign marks the position of an unexploded projectile fired on the Macedonian front and warns tommy not to disturb it. Such shells are eventually collected by salvaging crews".
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): [–][+]World War I
Date Issued (Dublin Core): 1917-10
Is Part Of (Dublin Core): Popular Mechanics, v. 28, n. 4, 1917
pages (Bibliographic Ontology): 530
Rights (Dublin Core): Public domain
Source (Dublin Core): Google books
Archived by (Dublin Core): Iacopo Tonon