[O on H in diamond] SW

Marked face of the O on H in diamond firebrick
Photo courtesy of James Freedner.

Brand name: [O on H in diamond] SW

Company: General Refractories Co.

Location: Olive Hill, Kentucky.

Years: 1911-1986+ (brick made)

Type: Firebrick

Description: Brand name impressed into the face. O imprinted on H inside a diamond and SW on the right side of the diamond logo, all on one line. From the collection of James Freedner.

References: Graves, Jim, Brick Brands of the United States, 2003; Krause, Corinne A., Refractories: The Hidden Industry, American Ceramic Society, 1987.

Contact Dan Mosier at

Copyright © 2015 Dan L. Mosier