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The manufacture of burglar-proof vaults. Door and jamb. Composite plates. Hand-fitting doors and safe vestibule. Butting edges of plates. Screwing up door with ratchet screw driver.
Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past
Restoration by: magscanner
- Created on
- Monday 30 November 2009
- Posted on
- Monday 30 November 2009
- Visits
- 1412