Marked Bricks: M
MAJOR firebrick
Vitrefrax Corporation
Vernon, Los Angeles County, CA
1935-1950
Courtesy of Blacky Blackwell
MANTEL BRICK firebrick
Stockton Fire Brick Company
Livermore, Alameda County, CA
1937-1943
MAR INE high-duty firebrick
Gladding, McBean & Company
Alberhill yard (1926-1935), Riverside County; Los Angeles yard (1935-1952) and South Gate yard (1935-1962), Los Angeles County, CA
1926-1962
Courtesy of Ron Rose
MARINE SM2 high-duty firebrick
Gladding, McBean & Company
Alberhill yard (1926-1935), Riverside County; Los Angeles yard (1935-1952) and South Gate yard (1935-1962), Los Angeles County, CA
1926-1962
Courtesy of Bob Voegtly
M.B.Co. common brick
Marysville Brick Company
Marysville, Yuba County, CA
1922-1938
Courtesy of Victoria Tudor
McKENZIE & REID XX MFGRS BENICIA CAL firebrick
McKenzie & Reid Manufacturers, Benicia Pottery
Benicia, Solano County, CA
1894-1897
Courtesy of David Garcia
McKNIGHT firebrick
McKnight Fire Brick Company
Porterville, Tulare County, CA
1919-1921
Courtesy of Blacky Blackwell
MERCED firebrick
California Pottery Company
Merced, Merced County, CA
1925-1930
METALLIC common brick
Metallic Brick Company
Los Angeles, Los Angeles County, CA
1916-1920
Courtesy of Ron Rose
MISSION common brick
Mission Brick Company
Van Nuys, Los Angeles County, CA
1924-1929
MOGUL split firebrick
Vitrefrax Corporation
Vernon, Los Angeles County, CA
1920s-1950
Courtesy of John Runyard
MONETA common brick
Moneta Brick Company
Moneta (Gardena), Los Angeles County, CA
1926-1931
Courtesy of Ron Rose
MULFORD common brick
Mulford Vitrified Brick Company
Los Angeles, Los Angeles County, CA
1911-1916
Courtesy of David Garcia
MULFORD BURKE BRICK Co [arrowheads] paving brick
Mulford-Burke Brick Company
Montebello, Los Angeles County, CA
1910-1911
Courtesy of Roy N. Anaclerio, Jr.
MULFORD VITRIFIED BRICK CO. [arrowheads] paving brick
Mulford Vitrified Brick Company
Montebello, Los Angeles County, CA
1911-1916
Courtesy of Ron Rose
J. MULLALLY LOS ANGELES common brick
Pioneer Brick Manufacturing Company
Los Angeles, Los Angeles County, CA
1854-1870s, maybe 1880s
Courtesy of Bill Ellinger