Brand Name: ZENITH / 3
Company: Zenith Clay Products
Brickyard Location: Ione, Amador County, CA.
Operating Years: 1980s
Years Brick Made: 1980s
Type: Super-Duty Firebrick
Description: Number 3 arch brick. Company's name is impressed within a shallow round-rectangular name plate outline. Number 3 in a shallow circle outline is impressed below name.
Source: California Division of Mines and Geology, Special Publication 58, 1981.
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