Camera obscura hut used for training bombardiers in flight

Title (Dublin Core): Camera obscura hut used for training bombardiers in flight
Subject (Dublin Core): en Technology; en Communication
Article Title and/or Image Caption (Dublin Core): Coast Defense From The Air
Contributor (Dublin Core): Andrew R. Boone
Language (Dublin Core): ENG
Temporal Coverage (Dublin Core): interwar period
Date Issued (Dublin Core): 1936-10
Is Part Of (Dublin Core): Scientific American, v. 155, n. 4, 1936
pages (Bibliographic Ontology): 197
Rights (Dublin Core): Public Domain
Archived by (Dublin Core): Lara Azzolini