Volume/Folder: Various blueprints and schematics

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Record Number: 5630
Folder Number: FF17
Creator: Mary Elizabeth Hallock Greenewalt, 1871-1950
Date of View: 1921 - 1925
View Format: Print › Cyanotype › Blueprint
Inscription text: Commercial Engineering Laboratories Greenewalt Light Player. Diagram of Connections. Dwg No. 24-6
Inscription location: Front
Image description: Blueprints and schematics for the color organ.