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Box Letter

 Container

Contains 208 Collections and/or Records:

Article and Photographs -- "Inclined Plane Clock", 1984

 File — Box: Letter, Box: 3, Folder: 52
Scope and Contents This collection represents the collected papers and manuscripts of noted horologist of the mid 20th Century, Orville Hagans. This includes articles, photographs, and correspondence of Hagans, as well as scrapbooks, research, and various other material. There are a number of article manuscripts from the Hagans library that are represented in this collection (see Series I). These are primarily typed articles, several of which include suggested edit, correspondence, and photographs...

Ingot Supplies, 1940 - 1950

 File — Box: Letter, Box: 3, Folder: 1
Scope and Contents Series consists of correspondence, tests, research reports, and drawings that document the development, application, and production costs of metal alloys for hairsprings. Correspondence pertaining to the acquisition, analysis, and use of raw materials is mostly between Hamilton and International Nickel Company.

Hairspring Materials, 1936 - 1956

 File — Box: Letter, Box: 3, Folder: 2
Scope and Contents Series consists of correspondence, tests, research reports, and drawings that document the development, application, and production costs of metal alloys for hairsprings. Correspondence pertaining to the acquisition, analysis, and use of raw materials is mostly between Hamilton and International Nickel Company.

Elinvar, Dynavar, 1950 - 1956

 File — Box: Letter, Box: 3, Folder: 3
Scope and Contents Series consists of correspondence, tests, research reports, and drawings that document the development, application, and production costs of metal alloys for hairsprings. Correspondence pertaining to the acquisition, analysis, and use of raw materials is mostly between Hamilton and International Nickel Company.

Hairspring Wire Production Costs, 1942 - 1951

 File — Box: Letter, Box: 3, Folder: 4
Scope and Contents Series consists of correspondence, tests, research reports, and drawings that document the development, application, and production costs of metal alloys for hairsprings. Correspondence pertaining to the acquisition, analysis, and use of raw materials is mostly between Hamilton and International Nickel Company.

Elgin, Elinvar Hairsprings, 1947

 File — Box: Letter, Box: 3, Folder: 5
Scope and Contents Series consists of correspondence, tests, research reports, and drawings that document the development, application, and production costs of metal alloys for hairsprings. Correspondence pertaining to the acquisition, analysis, and use of raw materials is mostly between Hamilton and International Nickel Company.

Waltham, Elinvar Hairsprings, 1947 - 1948

 File — Box: Letter, Box: 3, Folder: 6
Scope and Contents Series consists of correspondence, tests, research reports, and drawings that document the development, application, and production costs of metal alloys for hairsprings. Correspondence pertaining to the acquisition, analysis, and use of raw materials is mostly between Hamilton and International Nickel Company.

Heat Treating Furnaces, 1929 - 1939

 File — Box: Letter, Box: 3, Folder: 7
Scope and Contents Series consists of correspondence, tests, research reports, and drawings that document the development, application, and production costs of metal alloys for hairsprings. Correspondence pertaining to the acquisition, analysis, and use of raw materials is mostly between Hamilton and International Nickel Company.

Heat Treating Furnaces, 1939 - 1944

 File — Box: Letter, Box: 3, Folder: 8
Scope and Contents Series consists of correspondence, tests, research reports, and drawings that document the development, application, and production costs of metal alloys for hairsprings. Correspondence pertaining to the acquisition, analysis, and use of raw materials is mostly between Hamilton and International Nickel Company.

Ideas Rejected -- Correspondence, 1934

 File — Box: Letter, Box: 3, Folder: 3
Scope and Contents This collection includes project reports, annual reports, union records, article clippings, correspondence, and factory orders.