A Periscope Attached to Field-Glasses

Title (Dublin Core): A Periscope Attached to Field-Glasses
Subject (Dublin Core): en Technology; en Reconnaisance
Article Title and/or Image Caption (Dublin Core): A Periscope Attached to Field-Glasses; Caption: The frame is collapsible so that the entire periscope can be concealed within the usual field-glass casing.
Contributor (Dublin Core): Charles F. Smith (inventor)
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): World War I
Date Issued (Dublin Core): 1917-01
Is Part Of (Dublin Core): Popular Science Monthly, v. 90, n. 1, 1917
pages (Bibliographic Ontology): 32
Rights (Dublin Core): Public Domain
References (Dublin Core): New York
Archived by (Dublin Core): Besleu Dinu; Alberto Bordignon (Supervisor)
Spatial Coverage (Dublin Core): Brooklyn

Media: Periscope attached to field-glasses; Periscope attached to field-glasses