Identity elements
Reference code
Name and location of repository
Level of description
Item
Title
D23377-16
Date(s)
- 1946-08-21 (Creation)
Extent
Name of creator
(1919-1980)
Content and structure elements
Scope and content
An aerial view of Philadelphia Quartz' plant on the Tacoma tideflats. Philadelphia Quartz, with its plants in Berkeley, Los Angeles and Tacoma, was the leading producer of soluble silicates. Its products were used in paper mills, soaps, detergents, high octane gasoline, plywood, corrugated boxes and television sets. Silicates were the unknown product that made modern conveniences possible.
Chemical industry--Tacoma--1950-1960; Minerals; Philadelphia Quartz Co. of California (Tacoma); Aerial photographs;