"Big Bertha" made from logs looks like real cannon

Title (Dublin Core): "Big Bertha" made from logs looks like real cannon
Subject (Dublin Core): en Technology; en Trivialization (other)
Article Title and/or Image Caption (Dublin Core): "Big Bertha" made from logs looks like real cannon
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): interwar period
Date Issued (Dublin Core): 1935-04
Is Part Of (Dublin Core): Popular Mechanics, v. 63, n. 4, 1935
pages (Bibliographic Ontology): 523
Rights (Dublin Core): Public Domain (Google digitized)
Source (Dublin Core): Google Books
References (Dublin Core): Big Bertha; Chelan National Forest
Archived by (Dublin Core): Alessandro Barcaro; Alberto Bordignon (Supervisor)