82/93
){kind=link}
){kind=link}
){kind=link}
){kind=link}
){kind=link}
Improvements in steam shovels. Ninety-five ton shovel. Mining ore.
Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past
Restoration by: magscanner
- Created on
- Monday 7 June 2010
- Posted on
- Monday 7 June 2010
- Keywords
- civil engineering, construction, digging, excavation, power
- Visits
- 1170