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Ventilation Details (14-M), revised 11/28/1921

Service Details (15-M), revised 11/28/1921

Machine Room Details (16-M), revised 11/28/1921

Details of Transformer Room and Switch Vault (17-M & 17-MR), revised 9/23/1921

two drawings

Electrical Riser Diagram and Details (18-M), revised 11/28/1921

Plan of Rotary and Transformer Rooms (19-M), revised 5/22/1922

Wiring Diagram of Rotary Converters (20-M), revised 7/27/1922

29-1/2x45 inches

Plan and Front Elevation of Switchboard (21-M), 5/11/1922

26-1/2x35 inches

Sixth and Seventh Floor Plans, Showing Piping and Connections for Kitchen Equipment (21-M), 1/15/1923, revised 3/14/1923

15x23-1/2 inches

Electrical Plan of Transformer and Rotary Rooms and Switch Vault (22-M), 5/20/1922

24-1/2x37 inches