Observation balloon

Title (Dublin Core): Observation balloon
Subject (Dublin Core): en Technology; en Reconnaisance
Article Title and/or Image Caption (Dublin Core): Caption: "In each container hanging from the basket is a parachute so folded that it will open instantly when withdrawn".
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): World War I
Date Issued (Dublin Core): 1918-10
Is Part Of (Dublin Core): Popular Mechanics, v. 30, n. 4, 1918
pages (Bibliographic Ontology): 518
Rights (Dublin Core): Public domain
Source (Dublin Core): babel.hathitrust
Archived by (Dublin Core): Iacopo Tonon