Marked face of the Keystone firebrick

Brand Name: KEYSTONE

Company: Ione Fire Brick Company under Stockton Fire Brick Company

Brickyard Location: 1.4 miles southeast of Ione, Amador County, California

Operating Years: 1907-1942

Years Brick Made: 1930-1942

Type: Firebrick

Description: Brand name impressed on the face.

Comments: For more information, see under "Brickmakers" the Ione Fire Brick Company.

Ione Fire Brick Co. yard, Ione
Plant of the Ione Fire Brick Co., Ione, California. From Bradley, 1927.

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