This notebook was used during June-July 1920 and January-March 1921 by Edison, Walter N. Archer, Paul B. Kasakove, and W. J. Taylor. The entries pertain to the plating processes involved in the manufacture of disc records. The early entries by Edison contain data on various plating baths. Following these entries are tabular reports by Archer and Taylor of various plating baths and various molds plated in "Bath 5" in June and July 1920. Notes, suggestions, and instructions by Edison are interspersed throughout the early tables. The second half of the book contains entries from January-March 1921 for experiments, numbered 1-59, on speeding up the plating process. These experiments resulted in the adoption of a fast nickel plating process that reduced plating time. At the end of the book are several pages of tabular forms without data (not selected). The front cover is labeled "5" and is marked "Nickel Fast Plating Processe Experiments." The pages are unnumbered, and several pages have been removed from the book. Approximately 135 pages have been used.