Description: A notebook of laboratory tests compiled by Emile Berliner and his two eldest sons, Herbert and Edgar Berliner. The notebook contains test trials of different wax formulas and casting results. It also has notes on graphite powders, shellac records electroplating tests, and nickel and zinc solutions used in electroplating records.
Author: Emile Berliner, Herbert and Edgar Berliner
Language: English
Number of pages: 152
Date: 1919
Dimensions: height 27, width 21
NAC: 2021.0057.1-9