Photograph as originally submitted to this page in the Historical Marker Database www.HMdb.org. Click on photo to resize in browser. Scroll down to see metadata.
Gravity Research Foundation Marker
Photographer: Marc Posner
Taken: November 6, 2022
Caption: Gravity Research Foundation Marker
Submitted: March 17, 2024, by Marc Posner of Somerville, Massachusetts.
Database Locator Identification Number: p779481
File Size: 6.059 Megabytes

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