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File Type:
JPG (image/jpeg)
Photo Credit:
Ralph Eshelman
Photo Date:
2018
Collection / Donor:
Type of Object:
Contact / Remarks
Weight originally used to turn Fresnel lens. Weigh was attached to a cable and would descend through tower. The cable was attached to the clockwork, which regulated the speed of the descent and clockwork gears rotated the lens.
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Entered Date:
Mar 27, 2020
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