Marked Bricks: P-Q
P common brick
Pleasanton Brick Company
Pleasanton, Alameda County, CA
after 1877-1882?
PACIFIC firebrick
N. Clark & Sons
Sacramento, Sacramento County, CA
1872-1887
Courtesy of David Gettner
PACIFIC firebrick
N. Clark & Sons
Alameda, Alameda County, CA
after 1896?-1937
Courtesy of Stuart Guedon
PACIFIC face brick
Pacific Clay Products, Inc.
Los Angeles, Los Angeles, CA
1921-1953
Courtesy of Roy Steege
PACIFIC ACORN firebrick
Pacific Clay Products, Inc.
Los Angeles, Los Angeles, CA
1921-1953
![PACIFIC CLAY BLDG. PROD. [bricks] commercial brick](https://i0.wp.com/californiabricks.com/wp-content/uploads/2021/10/brick.pcbp_-432x164.jpg?fit=432%2C164&ssl=1)
PACIFIC CLAY BLDG. PROD. [bricks] commercial brick
Pacific Clay Building Products
Santa Fe Springs, Los Angeles County, CA
early 1980s
PACIFIC CLAY M’F’G. CO. firebrick
Pacific Clay Manufacturing Company
Corona, Riverside County, CA
1889-1910
Courtesy of M. Scott Fajack
Pacific Clay PRODUCTS INC. split paver
Pacific Clay Products, Inc.
Alberhill, Riverside County, CA
1996-P
Courtesy of George L. Kennedy
PACIFIC EXCELSIOR firebrick
Pacific Clay Products, Inc.
Los Angeles, Los Angeles, or Corona, Riverside County, CA
1921-1953
Courtesy of Alex Loulis
PACIFIC PYTHON firebrick
Pacific Clay Products, Inc.
Los Angeles, Los Angeles County, or Corona, Riverside County, CA
1921-1953
Courtesy of Blacky Blackwell
P. B. Co. common brick
Pomona Brick Company
Pomona, Los Angeles County, CA
1922-1941+
Courtesy of George L. Kennedy
PBY Co common brick
Park Brick Yard Company
San Diego, San Diego County, CA
1885-1888
Courtesy of George L. Kennedy
PCMCO firebrick
Pacific Clay Manufacturing Company
Corona, Riverside County, CA
1889-1910
Courtesy of George L. Kennedy
P.C.M.Co. CORONA, CAL. firebrick
Pacific Clay Manufacturing Company
Corona, Riverside County, CA
1889-1910
PCMCO GAS firebrick
Pacific Clay Manufacturing Company
Corona, Riverside County, CA
1889-1910
Courtesy of Ron Rose
PCMCO GAS firebrick
Pacific Clay Manufacturing Company
Corona, Riverside County, CA
1889-1910
Courtesy of Ron Rose
PCMCO SPECIAL firebrick
Pacific Clay Manufacturing Company
Corona, Riverside County, CA
1889-1910
Courtesy of Ron Rose
PCP face brick
Pacific Clay Products, Inc.
Los Angeles, Los Angeles County, CA
1921-1953
PCP ACORN firebrick
Pacific Clay Products, Inc.
Los Angeles, Los Angeles County, or Corona, Riverside County, CA
1921-1953
Courtesy of Douglas S. McIntosh
PCP EXCELSIOR firebrick
Pacific Clay Products, Inc.
Los Angeles, Los Angeles County, or Corona, Riverside County, CA
1921-1953
Courtesy of Roy Steege
PCP LADLE firebrick
Pacific Clay Products, Inc.
Los Angeles, Los Angeles County, or Corona, Riverside County, CA
1921-1953
PCP P 2 key firebrick
Pacific Clay Products, Inc.
Los Angeles, Los Angeles County, or Corona, Riverside County, CA
1921-1953
Courtesy of Steve Curtiss
P.C.W. red pressed brick
Vallejo Brick & Tile Company, Pacific Clay Works
Vallejo, Solano County, CA
1908-1909
PINITE 2 wedge or arch medium-duty firebrick
Gladding, McBean & Company (1943-1962) and Interpace 1962-1982
Pittsburg, Contra Costa County, CA
1943-1982
PINITE 102-114 SM medium-duty firebrick
Gladding, McBean & Company (1943-1962) and Interpace 1962-1982
Pittsburg, Contra Costa County, CA
1943-1982
Courtesy of Ron George
PISGAH common brick
Dr. Finis E. Yoakum and members of the Pentecostal Christian community
Pisgah Grande, Los Angeles County, CA
1914-1915
Courtesy of Ron Rose
PK pressed brick
Petersen-Kartschoke Brick Company
San Jose, Santa Clara County, CA
1884-1925
Courtesy of Alan J. Miller
PKBCO pressed brick
Petersen-Kartschoke Brick Company
San Jose, Santa Clara County, CA
1884-1925
PLACER firebrick
Gladding, McBean & Company
Lincoln, Placer County, CA
1921-1935
PLUTO firebrick
Steiger Terra Cotta & Pottery Company
South San Francisco, San Mateo County, CA
1905-1917
PLUTO-2 firebrick
Steiger Terra Cotta & Pottery Company
South San Francisco, San Mateo County, CA
1905-1917
PLUTO 3 firebrick
Steiger Terra Cotta & Pottery Company
South San Francisco, San Mateo County, CA
1905-1917
PREMIER firebrick
Livermore Fire Brick Works, W. S. Dickey Clay Manufacturing Company
Livermore, Alameda County, CA
1917-1926
PREMIER LIVERMORE firebrick
Livermore Fire Brick Works, W. S. Dickey Clay Manufacturing Company
Livermore, Alameda County, CA
1917-1926
PREMIER LIVERMORE F.B. WKS. S.F. firebrick
Livermore Fire Brick Works, W. S. Dickey Clay Manufacturing Company
Livermore, Alameda County, CA
1917-1926
PSP face brick
Pacific Sewer Pipe Company
Los Angeles, Los Angeles County, CA
1911-1921
Courtesy of George L. Kennedy
PSP ACORN firebrick
Pacific Sewer Pipe Company
Los Angeles, Los Angeles County, CA
1911-1921
Courtesy of George L. Kennedy
PSP EXCELSIOR firebrick
Pacific Sewer Pipe Company
Los Angeles, Los Angeles County, CA
1911-1921
PSP HIGH GRADE firebrick
Pacific Sewer Pipe Company
Los Angeles, Los Angeles County, CA
1911-1921
Courtesy of Albert Sanders
PSP 12 R firebrick
Pacific Sewer Pipe Company
Los Angeles, Los Angeles County, CA
1911-1921
Courtesy of Blacky Blackwell
PSP 18 R firebrick
Pacific Sewer Pipe Company
Los Angeles, Los Angeles County, CA
1911-1921
Courtesy of Jerry Doty
PSP 24 R firebrick
Pacific Sewer Pipe Company
Los Angeles, Los Angeles County, CA
1911-1921
Courtesy of Ron Rose
![PSP [acorn] firebrick](https://i0.wp.com/californiabricks.com/wp-content/uploads/2021/10/brick.pspacorn-432x218.jpg?fit=432%2C218&ssl=1)
PSP [acorn] firebrick
Pacific Sewer Pipe Company
Los Angeles, Los Angeles County, CA
1911-1921
Courtesy of George L. Kennedy
PSP [acorn] firebrick
Pacific Sewer Pipe Company
Los Angeles, Los Angeles County, CA
1911-1921
Courtesy of Ken Leonard
P.S.P. CO EXCELSIOR firebrick
Pacific Sewer Pipe Company
Los Angeles, Los Angeles County, CA
1911-1921
Courtesy of David Garcia
P.S.P.CO HIGH GRADE firebrick
Pacific Sewer Pipe Company
Los Angeles, Los Angeles County, CA
1911-1921
Courtesy of Mike Bunij
PSP CO 36 R firebrick
Pacific Sewer Pipe Company
Los Angeles, Los Angeles County, CA
1911-1921