Photograph as originally submitted to
this page in the Historical Marker Database
www.HMdb.org.
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Photographer: Andrew Ruppenstein
Taken: July 24, 2022
Caption:
Heike Kamerlingh Onnes: Vloeibarr Helium / Liquid Helium Marker | Submitted: October 24, 2022, by Andrew Ruppenstein of Lamorinda, California.
Database Locator Identification Number: p685465
File Size: 2.415 Megabytes
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