Electric signal gun

Title (Dublin Core): Electric signal gun
Subject (Dublin Core): en Technology; en Communication; en Ships
Article Title and/or Image Caption (Dublin Core): Caption: "Electric signal gun with which messages may be flashed from one ship to another without being intercepted: the lamp is installed within the Barrel at the base of the bore".
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): World War I
Date Issued (Dublin Core): 1917-06
Is Part Of (Dublin Core): Popular Mechanics Magazine, v. 27, n. 6, 1917
pages (Bibliographic Ontology): 838
Rights (Dublin Core): Public domain
Source (Dublin Core): Google books
Archived by (Dublin Core): Iacopo Tonon