Boats transfer mail at sea by using gun and line

Title (Dublin Core): Boats transfer mail at sea by using gun and line
Subject (Dublin Core): en Technology; en Ships; en Communication
Article Title and/or Image Caption (Dublin Core): Boats transfer mail at sea by using gun and line
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): 1931
Date Issued (Dublin Core): 1931-05
Is Part Of (Dublin Core): Popular Mechanics, v. 55, n. 5, 1931
pages (Bibliographic Ontology): 720
Rights (Dublin Core): Public domain
Source (Dublin Core): Google Books
Archived by (Dublin Core): Alessandro Barcaro; Marco Bortolami (editor)
Spatial Coverage (Dublin Core): Atlantic Ocean