Brand name: H-W
Company: Harbison-Walker Refractories Co.
Location: Unknown (see comments).
Years: 1875 - P (company active)
Type: High-Duty Firebrick
Description: Brand name "H-W" impressed into the face.
Comments: Not certain which plant produced this brick, a dark, dense, heavy
brick. Possibilities include Bessemer, AL, Olive Hill, KY, Vandalia, MO,
Fulton, MO, Portsmouth, OH, and Clearfield, PA.
References: Harbison-Walker Refractories Co., Modern Refractory Practice, 1961.
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