Scientific American 1903-08-01

2/2

✔ S - small (293 x 432)
✔ M - medium (403 x 594)
✔ L - large (512 x 756)
✔ XL - extra large (622 x 918)
✔ Original (650 x 958)

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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

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Created on: Monday 7 June 2010
Posted on: Monday 7 June 2010
Tags: civil engineering, construction, digging, excavation, power
Albums: General Magazines / Science and Technology Magazines / Scientific American
Visits: 1196