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Production. Milling machines and machine castings. Pouring a large mold is a fiery sight. To the left, flames are shooting from an escape hole -- caused by gas generated by the contact of iron with the relatively cool sand, graphite, linseed oil and other ingredients involved in the mold structure. The man at the left is wielding a skimmer to hold back any impurities floating on the surface of the ladle iron

Production. Milling machines and machine castings. Pouring a large mol...

Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description

Pettinos Brothers Graphite Manufacturing Mill, On Sand Island, south side of Lehigh Canal, west of Hill-to-Hill Bridge, Bethlehem, Northampton County, PA

Pettinos Brothers Graphite Manufacturing Mill, On Sand Island, south s...

Significance: Three story graphite mill built c.1900 is still in operation today grinding graphite for pigments. Survey number: HAER PA-147 Building/structure dates: ca. 1900 Initial Construction