7 / [GMcB oval logo] (tongue and groove)

Marked face of the GMcB 7 tongue and groove firebrick
Photo courtesy of George L. Kennedy

Brand Name: 7 / [GMcB oval logo] (tongue and groove)

Company: Gladding, McBean and Company

Brickyard Location: Pittsburg, Contra Costa County, CA

Operating Years: 1943-1962

Years Brick Made: 1943-1962

Type: Firebrick

Description: Tongue and groove firebrick. GMcB oval logo impressed below the longitudinal tongue. Number "7" impressed above the longitudinal tongue.

Comments: For more information, see under "Brickmakers" the Gladding, McBean and Company, Pittsburg.

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