Marked face of the ACORN firebrick
Photo courtesy of George L. Kennedy

Brand Name: ACORN

Company: Pacific Clay Products, Inc.

Brickyard Location: Corona, Riverside County or Lincoln Heights Plant, 423-527 North Avenue 26, Los Angeles, Los Angeles County, CA

Operating Years: 1921-1953.

Years Brick Made: ?

Type: Firebrick

Description: Brand name "ACORN" recessed inside a rounded rectangular name plate on the face.

Source: California State Mining Bureau Preliminary Report 7, 1920, p. 57; California State Mining Bureau Report 15, 1917, p. 497; California State Mining Bureau Bulletin 99, 1928, p. 111; California Journal of Mines and Geology, v. 50, no. 3-4, 1954, p. 467-709.

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