CALIFORNIA BRICKS
Brand name: GRAY
Company: San Francisco Brick Company
Location: States St., San Francisco, CA
Years: 1900-1914
Type: Common brick
Description: Brand name GRAY is recessed in a rectangular frog on the bottom face of the brick.
The left part of the brick containing the letter G is broken off.
Equipment: American Clay Working Co. stiff-mud brick machines, 3 pug mills, 28-compartment
continuous oil-burning kiln. Two-horse drawn brick wagons transported brick to market.
Capacity: Brick machine 100,000-125,000 per 10 hours; kiln 140,000-150,000 per day.
Deposit: Clay soil and shale quarried on the hill on States St. property, San Francisco.
Source: Aubury, Lewis E. "The Structural and Industrial Materials of California." California
State Mining Bureau Bulletin 38, 1906, p. 254; Brick and Clay Record, March 15, 1905, p. 39;
San Francisco Chronicle, November 12, 1914, p. 9; Schuyler, James D. "Report on the Brick
Manufacturing Plant of the San Francisco Brick Co." 10 February 1902.
For more information see under Brickmakers the San Francisco Brick Company.
Comments or questions are welcomed.
Please send email to Dan Mosier at danmosier@earthlink.net.