First Cement

Lehigh County · dedicated 1947 · Coplay Rd., between Coplay Cement office bldg. and Saylor Park Dr., Coplay

David O. Saylor was the first to make portland cement in the United States, at Coplay in 1871. First use of the rotary kiln to manufacture cement on a commercial scale also was here Nov. 8, 1889.

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David Rumsey Map Collection, Stanford Libraries

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First Cement

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