Shock-Absorbing Cap in Steel Helmet

Title (Dublin Core): Shock-Absorbing Cap in Steel Helmet
Subject (Dublin Core): en Imagined technology & prototypes; en Personal protection (helmets)
Article Title and/or Image Caption (Dublin Core): Shock-Absorbing Cap in Steel Helmet; Caption: "Steel helmet proposed for use in the American army. Having a felt cap within the crown and a movable visor to protect eyes".
Contributor (Dublin Core): India Rubber World (photo)
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): World War I
Date Issued (Dublin Core): 1918-01
Is Part Of (Dublin Core): Popular Mechanics, v. 29, n. 1, 1918
pages (Bibliographic Ontology): 30
Rights (Dublin Core): Public Domain
Source (Dublin Core): babel.hathitrust
References (Dublin Core): United States Army
Archived by (Dublin Core): Iacopo Tonon; Alberto Bordignon (Supervisor)
Spatial Coverage (Dublin Core): United States of America