Photograph as originally submitted to
this page in the Historical Marker Database
www.HMdb.org.
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Photographer: Joseph Alvarado
Taken: October 5, 2022
Caption:
The Archimedes Screw Pump Marker & Model | Submitted: October 12, 2022, by Joseph Alvarado of Livermore, California.
Database Locator Identification Number: p683145
File Size: 10.408 Megabytes
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