-Bakelite Molding

https://www.lehigh.edu/~asj316/technology/bakelite_001.jpg

"This manual has been prepared in collaboration with the manufacturers of vinylite plastics, Carbide and carbon chemicals corporation." Published originally in 1928, this manual is worth keeping as it provides insight into the manufacture of the plastic volvelles in the adjacent panel. 

Bakelite Corporation. Carbide and Carbon Chemicals Corporation.
Molding Technic for Bakelite and Vinylite Plastics.
New York: Bakelite Corporation [c1941].

Lehigh University Catalog Record: https://asa.lib.lehigh.edu/Record/133130

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Technology
-Bakelite Molding