Distance-measuring glass and periscopes

Title (Dublin Core): Distance-measuring glass and periscopes
Subject (Dublin Core): en Technology; en Reconnaisance
Article Title and/or Image Caption (Dublin Core): Caption: "Austrian artillery officer using a distance measuring glass on a Russian position".
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): World War, 1914-1918; World War I
Date Issued (Dublin Core): 1915-08
Is Part Of (Dublin Core): Popular Mechanics, v. 24, n. 2, 1915
pages (Bibliographic Ontology): 214
Rights (Dublin Core): Public domain (Google digitized)
Source (Dublin Core): Google Books
References (Dublin Core): London
Archived by (Dublin Core): Iacopo Tonon; Davide Donà (supervisor)
Spatial Coverage (Dublin Core): Austria-Hungary