National Tube Works

National Tube Works is a Pennsylvania historical marker in McKeesport, Allegheny County, dedicated 1991.

Allegheny County · dedicated 1991 · 575 Lysle Blvd. (PA 148), at subway entrance to plant, McKeesport

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Incorporated 1869, the works began production here, 1872. By 1901, when it became a subsidiary of U.S. Steel, this was the world's largest pipe producer. Major advances in inspection techniques originated here. Plant operations ceased in 1987.

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David Rumsey Map Collection, Stanford Libraries

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under a mile from where William Gabby lived in the 1760s

what this marker records spans 1777 to 1789, overlapping William Gabby's years here

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Marker data: Pennsylvania Historical and Museum Commission via data.pa.gov

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