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Scientific American 1893-12-30
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The Bonta plate and embossed glass rolling machine--rolling the glass. The Bonta plate glass annealing oven.
Source: Steve Kirch, creator of a wonderful website about SCIENTIFIC AMERICAN in the past
Restoration by: magscanner
- Created on
- Friday 30 January 2009
- Posted on
- Friday 30 January 2009
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