Never try to tell me it can't be done
When I have to paint I use http://kbs.justoldtrucks.com/
Pig iron is simply a crudely refined iron ore that contains lots of impurities. It is made by melting down the ore and pouring it into ingots or "pigs" of iron to make it easier to transport . The original smelting of the iron does remove much of the bulk and some impurities, but it must be further refined before it is useable.
Credit to mklotz for finding this image.Dayton, Ohio, 1904. "Tool room of the National Cash Register Co." A case study in belt-and-pulley power transmission. George R. Lawrence Co.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...m_fullsize.jpg
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