Manuscripts
2.4. Garage Department
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2.5. Shop and Test Department
Manuscripts
This subseries contains records documenting Southern California Edison's Shop and Test Department and includes correspondence, design specifications, invoices, ledgers, manuals, minutes, newsletters, notes, plans, reports, work orders, and other materials. This subseries includes the meeting minutes of the Edison Electric Institute Meter and Service Committee from 1948 to 1972, as well as Meter and Test Department (later called the Shop and Test Department) Annual Reports and/or supporting materials ranging in date from 1921-1959. General store transfer ledgers, with dates ranging from 1917-1935, offer auditing information and comprise the bulk of the Shop and Test Department subseries. Files are arranged alphabetically by title, and chronologically thereafter.
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2.1. Commercial Department
Manuscripts
This subseries contains records documenting Southern California Edison's Commercial Department and includes manuals, memoranda, reports, scrapbooks, and other materials. Statistical reports, ranging in date from 1916 to 1918, provide information related to various districts throughout Southern California. Files are arranged alphabetically by title, and chronologically thereafter.
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2.3. Engineering Department
Manuscripts
This subseries contains records documenting Southern California Edison's Engineering Department and includes correspondence, lists, notes, photographs, and other materials. This subseries consists, almost exclusively, of Real Property Files related to business offices, service centers, substations, and other locations. Black and white photographic prints comprise a significant portion of this subseries. Files are arranged alphabetically by title, and chronologically thereafter.
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Series 2. Department/Division Records
Manuscripts
This series contains records documenting Southern California Edison's department/division records. The series is divided into six subseries: Commercial Department, Communication Division, Engineering Department, Garage Department, Shop and Test Department, and Steam Generation Division.
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2.2. Communication Division
Manuscripts
This subseries contains records documenting Southern California Edison's Communication Division and includes bulletins, correspondence, log sheets, manuals, minutes, photographs, reports, and other materials. Dispatcher Wartime Bulletins Files include bulletins, clippings, correspondence, diagrams, memoranda, notes, and reports pertaining to war-time air raid alarms, barrage balloons, blackouts, power interruptions, and other matters. Black and white photographic prints and negatives include images of Edison's radio communications system, the division's facilities and equipment, Breckenridge Mountain, Government Peak, and other sites. Files are arranged alphabetically by title, and chronologically thereafter.
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5.1. Generation (Power Plants) Records
Manuscripts
This subseries contains records documenting Southern California Edison's generation of electricity and includes abstracts, histories, job/work orders, lists, log books, pamphlets, reports, statistical information, and other materials. The log books comprise the bulk of the subseries and range in date from 1899 to 1972. These materials document the creation, operation, and routine maintenance of various generation facilities including Fontana Station, Lytle Creek, Mill Creek, Ontario Power Station, the Santa Ana River Plants, and the Sierra Hydro Plant. Meter readings for some facilities are also included. Files are arranged alphabetically by title, and chronologically thereafter.
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