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Various blueprints and schematics (1921-1925, undated)
Blueprints and schematics for Mary Elizabeth Hallock Greenewalt's color organ, console, and light play machine.
Image details: (1) is Lense Arrangement for Color Control Screen; (2) is Sector Reflector; (3) is Rheostat Base of Light Player; (4) is Connections of Color Organ, Sesqui-...
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| Main Author: | |
|---|---|
| Collection: | Mary Elizabeth Hallock Greenewalt papers (#0867) |
| Date: | 1921-01-01/1925-12-31 |
| Folder Number: | Folder Flat File 17 |
| Format: | Electronic |
| Subjects and Genres: | |
| Copyright: | Please contact Historical Society of Pennsylvania Rights and Reproductions (rnr@hsp.org) |
| Online Access: | https://digitallibrary.hsp.org/index.php/Detail/objects/5630 |
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