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Image Title:
   National Magnesia plant.
 


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Caption:   National Magnesia plant (c.1931). National Magnesia constructed a plant on Middlefield Road, south of Charter Street in 1912. The company manufactured industrial insulation. Johns-Manville Products Corporation took over operations in 1928, and production was expanded to include roofing materials. Johns-Manville ran the plant until 1955 when operations were moved to Stockton.
     
Photo Date:   circa 1931
     
OwningLibrary:
   Redwood City Public Library
     
Subjects:  

Industry -- Redwood City, CA

Businesses -- Redwood City, CA
 
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