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This illustration dates to the 1870s and shows a Bessemer converter. The caption reads: Bessemer
UMG25A05_334

This illustration dates to the 1870s and shows a B...

This illustration dates to the 1870s and shows a cupola furnace. This type of furnce was the
UMG25A05_337

This illustration dates to the 1870s and shows a c...

This illustration dates to the 1870s and shows experiments at Baxter House at producing steel. On
UMG25A05_333

This illustration dates to the 1870s and shows exp...

This illustration dates to the 1870s and shows a cup and cone.The most active ingredient in the
UMG25A05_332

This illustration dates to the 1870s and shows a c...

This illustration dates to the 1870s and shows a blast furnace in Great Britain, where the enormous
UMG25A05_331

This illustration dates to the 1870s and shows a b...

This illustration dates to the 1870s and shows a blast furnace in Great Britain, where the enormous
UMG25A05_330

This illustration dates to the 1870s and shows a b...

This illustration dates to the 1870s and shows the apparatur for making Bessemer steel. The
UMG25A05_336

This illustration dates to the 1870s and shows the...

Smelting the Ore
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Smelting the Ore

A blast furnace for iron smelting
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A blast furnace for iron smelting

African American Steel Worker
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African American Steel Worker

Newly-built small blast furnaces at yingshuichiao iron smelting works in chungwei county, china, great leap forward, 1950s.
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Newly-built small blast furnaces at yingshuichiao ...

Small blast furnaces in hunan province, china, great leap forward, 1950s.
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Small blast furnaces in hunan province, china, gre...

African American Young Girl in a Washington Park 1944
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African American Young Girl in a Washington Park 1...

African American working in a Smelting Plant 1944
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African American working in a Smelting Plant 1944

Copper ore furnaces. Two mushroom-shaped clay furnaces, used for smelting copper ore. Rhodesia
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Copper ore furnaces. Two mushroom-shaped clay furn...